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131031103103142 = 231116931172663759
BaseRepresentation
bin11101110010110000001110…
…010110101110000010100110
3122011221110011212102001122220
4131302300032112232002212
5114133303144343300032
61142402505135533210
736412453612365504
oct3562601626560246
9564843155361586
10131031103103142
1138828a84800940
121284285738a206
135816245612068
14244dd21359674
1510236466d412c
hex772c0e5ae0a6

131031103103142 has 32 divisors (see below), whose sum is σ = 286054906959360. Its totient is φ = 39682941570720.

The previous prime is 131031103103081. The next prime is 131031103103191. The reversal of 131031103103142 is 241301301130131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586220142 + ... + 586443617.

It is an arithmetic number, because the mean of its divisors is an integer number (8939215842480).

Almost surely, 2131031103103142 is an apocalyptic number.

131031103103142 is an abundant number, since it is smaller than the sum of its proper divisors (155023803856218).

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

131031103103142 is a wasteful number, since it uses less digits than its factorization.

131031103103142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172665468.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 131031103103142 its reverse (241301301130131), we get a palindrome (372332404233273).

The spelling of 131031103103142 in words is "one hundred thirty-one trillion, thirty-one billion, one hundred three million, one hundred three thousand, one hundred forty-two".

Divisors: 1 2 3 6 11 22 33 66 1693 3386 5079 10158 18623 37246 55869 111738 1172663759 2345327518 3517991277 7035982554 12899301349 25798602698 38697904047 77395808094 1985319743987 3970639487974 5955959231961 11911918463922 21838517183857 43677034367714 65515551551571 131031103103142