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104688948891 = 3193229378853
BaseRepresentation
bin110000101111111110…
…0101001011010011011
3101000012221201121220110
41201133330221122123
53203400332331031
6120032103255403
710364201245302
oct1413774513233
9330187647813
10104688948891
114044220087a
121835814a563
139b450a1407
1450d1ab3439
152acabecc46
hex185ff2969b

104688948891 has 16 divisors (see below), whose sum is σ = 140371474976. Its totient is φ = 69399853056.

The previous prime is 104688948883. The next prime is 104688948893. The reversal of 104688948891 is 198849886401.

It is not a de Polignac number, because 104688948891 - 23 = 104688948883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104688948893) 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, 1288221 + ... + 1367073.

It is an arithmetic number, because the mean of its divisors is an integer number (8773217186).

Almost surely, 2104688948891 is an apocalyptic number.

104688948891 is a deficient number, since it is larger than the sum of its proper divisors (35682526085).

104688948891 is a wasteful number, since it uses less digits than its factorization.

104688948891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81342.

The product of its (nonzero) digits is 31850496, while the sum is 66.

The spelling of 104688948891 in words is "one hundred four billion, six hundred eighty-eight million, nine hundred forty-eight thousand, eight hundred ninety-one".

Divisors: 1 3 193 579 2293 6879 78853 236559 442549 1327647 15218629 45655887 180809929 542429787 34896316297 104688948891