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131031040443142 = 279796488247749
BaseRepresentation
bin11101110010110000001010…
…100111101100001100000110
3122011221110000111111121022011
4131302300022213230030012
5114133303032323140032
61142402455020524434
736412452221652340
oct3562601247541406
9564843014447264
10131031040443142
1138828a523a3514
121284283a3b071a
135816235643438
14244dd16cc8290
151023640e58247
hex772c0a9ec306

131031040443142 has 16 divisors (see below), whose sum is σ = 226940358708000. Its totient is φ = 55577230702848.

The previous prime is 131031040443109. The next prime is 131031040443203. The reversal of 131031040443142 is 241344040130131.

It is a super-2 number, since 2×1310310404431422 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48244122517 + ... + 48244125232.

It is an arithmetic number, because the mean of its divisors is an integer number (14183772419250).

Almost surely, 2131031040443142 is an apocalyptic number.

131031040443142 is a deficient number, since it is larger than the sum of its proper divisors (95909318264858).

131031040443142 is an equidigital number, since it uses as much as digits as its factorization.

131031040443142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96488247855.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 131031040443142 its reverse (241344040130131), we get a palindrome (372375080573273).

The spelling of 131031040443142 in words is "one hundred thirty-one trillion, thirty-one billion, forty million, four hundred forty-three thousand, one hundred forty-two".

Divisors: 1 2 7 14 97 194 679 1358 96488247749 192976495498 675417734243 1350835468486 9359360031653 18718720063306 65515520221571 131031040443142