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31330131417 = 3213220598377
BaseRepresentation
bin11101001011011010…
…111101110111011001
32222212110011120122200
4131023122331313121
51003131003201132
622220505240413
72156250503004
oct351332756731
988773146580
1031330131417
11123180514a2
1260a4493109
132c53b1cb00
141732d7053b
15c357bbd7c
hex74b6bddd9

31330131417 has 18 divisors (see below), whose sum is σ = 49003541262. Its totient is φ = 19280079936.

The previous prime is 31330131403. The next prime is 31330131439. The reversal of 31330131417 is 71413103313.

31330131417 is a `hidden beast` number, since 3 + 1 + 330 + 1 + 314 + 17 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 231161616 + 31098969801 = 15204^2 + 176349^2 .

It is not a de Polignac number, because 31330131417 - 212 = 31330127321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31330131457) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 10297668 + ... + 10300709.

It is an arithmetic number, because the mean of its divisors is an integer number (2722418959).

Almost surely, 231330131417 is an apocalyptic number.

It is an amenable number.

31330131417 is a deficient number, since it is larger than the sum of its proper divisors (17673409845).

31330131417 is a wasteful number, since it uses less digits than its factorization.

31330131417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20598409 (or 20598393 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The spelling of 31330131417 in words is "thirty-one billion, three hundred thirty million, one hundred thirty-one thousand, four hundred seventeen".

Divisors: 1 3 9 13 39 117 169 507 1521 20598377 61795131 185385393 267778901 803336703 2410010109 3481125713 10443377139 31330131417