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106615025631 = 3323171682811
BaseRepresentation
bin110001101001011000…
…0000010111111011111
3101012012011222110111000
41203102300002333133
53221321421310011
6120551150001343
710463006523342
oct1432260027737
9335164873430
10106615025631
1141240447834
12187b51a6253
13a0911352aa
145235808459
152b8ed5c356
hex18d2c02fdf

106615025631 has 16 divisors (see below), whose sum is σ = 164815499520. Its totient is φ = 67986392760.

The previous prime is 106615025611. The next prime is 106615025653. The reversal of 106615025631 is 136520516601.

106615025631 is a `hidden beast` number, since 1 + 0 + 6 + 6 + 15 + 0 + 2 + 5 + 631 = 666.

It is not a de Polignac number, because 106615025631 - 217 = 106614894559 is a prime.

It is a super-2 number, since 2×1066150256312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106615025611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85840785 + ... + 85842026.

It is an arithmetic number, because the mean of its divisors is an integer number (10300968720).

Almost surely, 2106615025631 is an apocalyptic number.

106615025631 is a deficient number, since it is larger than the sum of its proper divisors (58200473889).

106615025631 is a wasteful number, since it uses less digits than its factorization.

106615025631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171682843 (or 171682837 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The spelling of 106615025631 in words is "one hundred six billion, six hundred fifteen million, twenty-five thousand, six hundred thirty-one".

Divisors: 1 3 9 23 27 69 207 621 171682811 515048433 1545145299 3948704653 4635435897 11846113959 35538341877 106615025631