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1312102303002 = 232319724241627
BaseRepresentation
bin10011000101111111011…
…001000100010100011010
311122102202122222010220200
4103011333121010110122
5132444141142144002
62442434350003030
7163540055361531
oct23057731042432
94572678863820
101312102303002
114665065a85a7
121923644a6476
13969664caa8a
14477129d7318
15241e6652b1c
hex1317f64451a

1312102303002 has 48 divisors (see below), whose sum is σ = 2964848070912. Its totient is φ = 418895297280.

The previous prime is 1312102302943. The next prime is 1312102303009. The reversal of 1312102303002 is 2003032012131.

1312102303002 is a `hidden beast` number, since 13 + 121 + 0 + 230 + 300 + 2 = 666.

It is a super-2 number, since 2×13121023030022 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1312102303009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12066688 + ... + 12174939.

It is an arithmetic number, because the mean of its divisors is an integer number (61767668144).

Almost surely, 21312102303002 is an apocalyptic number.

1312102303002 is an abundant number, since it is smaller than the sum of its proper divisors (1652745767910).

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

1312102303002 is a wasteful number, since it uses less digits than its factorization.

1312102303002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24241763 (or 24241760 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1312102303002 its reverse (2003032012131), we get a palindrome (3315134315133).

The spelling of 1312102303002 in words is "one trillion, three hundred twelve billion, one hundred two million, three hundred three thousand, two".

Divisors: 1 2 3 6 9 18 31 62 93 97 186 194 279 291 558 582 873 1746 3007 6014 9021 18042 27063 54126 24241627 48483254 72724881 145449762 218174643 436349286 751490437 1502980874 2254471311 2351437819 4508942622 4702875638 6763413933 7054313457 13526827866 14108626914 21162940371 42325880742 72894572389 145789144778 218683717167 437367434334 656051151501 1312102303002