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1213300140 = 2235132367631
BaseRepresentation
bin100100001010001…
…0111110110101100
310010120001000220020
41020110113312230
54441101101030
6320221122140
742031611123
oct11024276654
93116030806
101213300140
11572970398
1229a3b9350
131644a01a0
14b71d2aba
15717b6510
hex48517dac

1213300140 has 96 divisors (see below), whose sum is σ = 3817691136. Its totient is φ = 285669120.

The previous prime is 1213300133. The next prime is 1213300171. The reversal of 1213300140 is 410033121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15876 + ... + 51755.

It is an arithmetic number, because the mean of its divisors is an integer number (39767616).

Almost surely, 21213300140 is an apocalyptic number.

1213300140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213300140 is an abundant number, since it is smaller than the sum of its proper divisors (2604390996).

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

1213300140 is a wasteful number, since it uses less digits than its factorization.

1213300140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67679 (or 67677 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1213300140 is about 34832.4581389255. The cubic root of 1213300140 is about 1066.5701277647.

Adding to 1213300140 its reverse (410033121), we get a palindrome (1623333261).

The spelling of 1213300140 in words is "one billion, two hundred thirteen million, three hundred thousand, one hundred forty".

Divisors: 1 2 3 4 5 6 10 12 13 15 20 23 26 30 39 46 52 60 65 69 78 92 115 130 138 156 195 230 260 276 299 345 390 460 598 690 780 897 1196 1380 1495 1794 2990 3588 4485 5980 8970 17940 67631 135262 202893 270524 338155 405786 676310 811572 879203 1014465 1352620 1555513 1758406 2028930 2637609 3111026 3516812 4057860 4396015 4666539 5275218 6222052 7777565 8792030 9333078 10550436 13188045 15555130 17584060 18666156 20221669 23332695 26376090 31110260 40443338 46665390 52752180 60665007 80886676 93330780 101108345 121330014 202216690 242660028 303325035 404433380 606650070 1213300140