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31301672241 = 375273282677
BaseRepresentation
bin11101001001101110…
…011001110100110001
32222210110121201000010
4131021232121310301
51003101212002431
622214011245133
72155453552440
oct351156316461
988713551003
1031301672241
1112302a83714
126096a497a9
132c4ac67268
14172d282d57
15c33049846
hex749b99d31

31301672241 has 16 divisors (see below), whose sum is σ = 47707000704. Its totient is φ = 17883214464.

The previous prime is 31301672239. The next prime is 31301672257. The reversal of 31301672241 is 14227610313.

It is a happy number.

It is not a de Polignac number, because 31301672241 - 21 = 31301672239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31301672199 and 31301672208.

It is not an unprimeable number, because it can be changed into a prime (31301672201) 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 15 ways as a sum of consecutive naturals, for example, 30606 + ... + 252071.

It is an arithmetic number, because the mean of its divisors is an integer number (2981687544).

Almost surely, 231301672241 is an apocalyptic number.

It is an amenable number.

31301672241 is a deficient number, since it is larger than the sum of its proper divisors (16405328463).

31301672241 is a wasteful number, since it uses less digits than its factorization.

31301672241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287960.

The product of its (nonzero) digits is 6048, while the sum is 30.

The spelling of 31301672241 in words is "thirty-one billion, three hundred one million, six hundred seventy-two thousand, two hundred forty-one".

Divisors: 1 3 7 21 5273 15819 36911 110733 282677 848031 1978739 5936217 1490555821 4471667463 10433890747 31301672241