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1001131031300 = 225229798575099
BaseRepresentation
bin11101001000110000000…
…11110011101100000100
310112201002112122202202012
432210120003303230010
5112400304021000200
62043525132233352
7132220650234251
oct16443003635404
93481075582665
101001131031300
11356639405504
1214203890b858
13735386c2a2a
1436652742428
151b095bcba35
hexe9180f3b04

1001131031300 has 144 divisors (see below), whose sum is σ = 2278916640000. Its totient is φ = 381229255680.

The previous prime is 1001131031279. The next prime is 1001131031323. The reversal of 1001131031300 is 31301311001.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196336151 + ... + 196341249.

It is an arithmetic number, because the mean of its divisors is an integer number (15825810000).

Almost surely, 21001131031300 is an apocalyptic number.

1001131031300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1001131031300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1139458320000).

1001131031300 is an abundant number, since it is smaller than the sum of its proper divisors (1277785608700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1001131031300 is a wasteful number, since it uses less digits than its factorization.

1001131031300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6078 (or 6071 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 1001131031300 its reverse (31301311001), we get a palindrome (1032432342301).

The spelling of 1001131031300 in words is "one trillion, one billion, one hundred thirty-one million, thirty-one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 79 100 116 145 158 290 316 395 580 725 790 857 1450 1580 1714 1975 2291 2900 3428 3950 4285 4582 5099 7900 8570 9164 10198 11455 17140 20396 21425 22910 24853 25495 42850 45820 49706 50990 57275 67703 85700 99412 101980 114550 124265 127475 135406 147871 229100 248530 254950 270812 295742 338515 402821 497060 509900 591484 621325 677030 739355 805642 1242650 1354060 1478710 1611284 1692575 1963387 2014105 2485300 2957420 3385150 3696775 3926774 4028210 4369843 6770300 7393550 7853548 8056420 8739686 9816935 10070525 11681809 14787100 17479372 19633870 20141050 21849215 23363618 39267740 40282100 43698430 46727236 49084675 58409045 87396860 98169350 109246075 116818090 126725447 196338700 218492150 233636180 253450894 292045225 345217597 436984300 506901788 584090450 633627235 690435194 1168180900 1267254470 1380870388 1726087985 2534508940 3168136175 3452175970 6336272350 6904351940 8630439925 10011310313 12672544700 17260879850 20022620626 34521759700 40045241252 50056551565 100113103130 200226206260 250282757825 500565515650 1001131031300