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31010102 = 271218381
BaseRepresentation
bin111011001001…
…0110100110110
32011100110212022
41312102310312
530414310402
63024353142
7524403314
oct166226466
964313768
1031010102
1116560392
12a4757b2
136569996
1441930b4
152ac82a2
hex1d92d36

31010102 has 8 divisors (see below), whose sum is σ = 47170512. Its totient is φ = 15286600.

The previous prime is 31010093. The next prime is 31010113. The reversal of 31010102 is 20101013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 31010102.

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, 109049 + ... + 109332.

It is an arithmetic number, because the mean of its divisors is an integer number (5896314).

Almost surely, 231010102 is an apocalyptic number.

31010102 is a deficient number, since it is larger than the sum of its proper divisors (16160410).

31010102 is a wasteful number, since it uses less digits than its factorization.

31010102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218454.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 31010102 is about 5568.6714753162. The cubic root of 31010102 is about 314.1721843584.

Adding to 31010102 its reverse (20101013), we get a palindrome (51111115).

The spelling of 31010102 in words is "thirty-one million, ten thousand, one hundred two".

Divisors: 1 2 71 142 218381 436762 15505051 31010102