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31577211004417 = 132283660238171
BaseRepresentation
bin1110010111000001001000…
…11100011110011000000001
311010210202022010110022111221
413023200210130132120001
513114330112004120132
6151054212004435041
76436243503623011
oct713404434363001
9133722263408457
1031577211004417
11a0749024398a1
12365ba600a8a81
131480944c14200
147b24b91d3c41
1539b5e087ce97
hex1cb82471e601

31577211004417 has 12 divisors (see below), whose sum is σ = 34313898275184. Its totient is φ = 29045197574640.

The previous prime is 31577211004331. The next prime is 31577211004421. The reversal of 31577211004417 is 71440011277513.

It is not a de Polignac number, because 31577211004417 - 243 = 22781117982209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31577211004477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330071259 + ... + 330166912.

It is an arithmetic number, because the mean of its divisors is an integer number (2859491522932).

Almost surely, 231577211004417 is an apocalyptic number.

It is an amenable number.

31577211004417 is a deficient number, since it is larger than the sum of its proper divisors (2736687270767).

31577211004417 is a wasteful number, since it uses less digits than its factorization.

31577211004417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660238480 (or 660238467 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 43.

The spelling of 31577211004417 in words is "thirty-one trillion, five hundred seventy-seven billion, two hundred eleven million, four thousand, four hundred seventeen".

Divisors: 1 13 169 283 3679 47827 660238171 8583096223 111580250899 186847402393 2429016231109 31577211004417