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31700070164 = 2271132145363
BaseRepresentation
bin11101100001011110…
…001010111100010100
310000211020021102012202
4131201132022330110
51004410204221124
622321322304032
72201362102430
oct354136127424
9100736242182
1031700070164
11124979549a4
126188358018
132cb2667589
14176a14b9c0
15c57ee35ae
hex76178af14

31700070164 has 12 divisors (see below), whose sum is σ = 63400140384. Its totient is φ = 13585744344.

The previous prime is 31700070097. The next prime is 31700070173. The reversal of 31700070164 is 46107000713.

31700070164 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 566072654 + ... + 566072709.

It is an arithmetic number, because the mean of its divisors is an integer number (5283345032).

Almost surely, 231700070164 is an apocalyptic number.

It is an amenable number.

31700070164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31700070164 is a wasteful number, since it uses less digits than its factorization.

31700070164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132145374 (or 1132145372 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 29.

Adding to 31700070164 its reverse (46107000713), we get a palindrome (77807070877).

The spelling of 31700070164 in words is "thirty-one billion, seven hundred million, seventy thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 1132145363 2264290726 4528581452 7925017541 15850035082 31700070164