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93108689938 = 21173137423179
BaseRepresentation
bin101011010110110110…
…1011101110000010010
322220022220102112000201
41112231231131300102
53011141311034223
6110435030205414
76504214543345
oct1265555356022
9286286375021
1093108689938
113653a478930
1216065ab386a
138a1aba0794
144713b1845c
15264e23eead
hex15adb5dc12

93108689938 has 32 divisors (see below), whose sum is σ = 155574509760. Its totient is φ = 41437589760.

The previous prime is 93108689909. The next prime is 93108689963. The reversal of 93108689938 is 83998680139.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 93108689938.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8433 + ... + 431611.

It is an arithmetic number, because the mean of its divisors is an integer number (4861703430).

Almost surely, 293108689938 is an apocalyptic number.

93108689938 is a deficient number, since it is larger than the sum of its proper divisors (62465819822).

93108689938 is a wasteful number, since it uses less digits than its factorization.

93108689938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423402.

The product of its (nonzero) digits is 20155392, while the sum is 64.

The spelling of 93108689938 in words is "ninety-three billion, one hundred eight million, six hundred eighty-nine thousand, nine hundred thirty-eight".

Divisors: 1 2 11 22 73 137 146 274 803 1507 1606 3014 10001 20002 110011 220022 423179 846358 4654969 9309938 30892067 57975523 61784134 115951046 339812737 637730753 679625474 1275461506 4232213179 8464426358 46554344969 93108689938