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1301131300 = 2252721312027
BaseRepresentation
bin100110110001101…
…1011000000100100
310100200022022121011
41031203123000210
510131042200200
6333035432004
744146301500
oct11543330044
93320268534
101301131300
11608500227
123038b5604
13179742ba1
14c4b37300
15793655ba
hex4d8db024

1301131300 has 108 divisors (see below), whose sum is σ = 3311131824. Its totient is φ = 442478400.

The previous prime is 1301131277. The next prime is 1301131319. The reversal of 1301131300 is 31311031.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 640887 + ... + 642913.

It is an arithmetic number, because the mean of its divisors is an integer number (30658628).

Almost surely, 21301131300 is an apocalyptic number.

1301131300 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 1301131300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1655565912).

1301131300 is an abundant number, since it is smaller than the sum of its proper divisors (2010000524).

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

1301131300 is a wasteful number, since it uses less digits than its factorization.

1301131300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186 (or 2172 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1301131300 is about 36071.1976513118. The cubic root of 1301131300 is about 1091.7093791600.

Adding to 1301131300 its reverse (31311031), we get a palindrome (1332442331).

The spelling of 1301131300 in words is "one billion, three hundred one million, one hundred thirty-one thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 131 140 175 196 245 262 350 490 524 655 700 917 980 1225 1310 1834 2027 2450 2620 3275 3668 4054 4585 4900 6419 6550 8108 9170 10135 12838 13100 14189 18340 20270 22925 25676 28378 32095 40540 45850 50675 56756 64190 70945 91700 99323 101350 128380 141890 160475 198646 202700 265537 283780 320950 354725 397292 496615 531074 641900 709450 993230 1062148 1327685 1418900 1858759 1986460 2483075 2655370 3717518 4966150 5310740 6638425 7435036 9293795 9932300 13011313 13276850 18587590 26022626 26553700 37175180 46468975 52045252 65056565 92937950 130113130 185875900 260226260 325282825 650565650 1301131300