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104366813781 = 31989107192271
BaseRepresentation
bin110000100110010111…
…1110011001001010101
3100222101111120110121110
41201030233303021111
53202220401020111
6115540115005233
710353210165006
oct1411457631125
9328344513543
10104366813781
1140297388a0a
1218288299819
139ac3423419
1450a0dbb1ad
152aac7ba5a6
hex184cbf3255

104366813781 has 32 divisors (see below), whose sum is σ = 149510707200. Its totient is φ = 64565804160.

The previous prime is 104366813699. The next prime is 104366813833. The reversal of 104366813781 is 187318663401.

It is not a de Polignac number, because 104366813781 - 29 = 104366813269 is a prime.

It is a super-2 number, since 2×1043668137812 (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 104366813781.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104366813081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 446676 + ... + 638946.

It is an arithmetic number, because the mean of its divisors is an integer number (4672209600).

Almost surely, 2104366813781 is an apocalyptic number.

It is an amenable number.

104366813781 is a deficient number, since it is larger than the sum of its proper divisors (45143893419).

104366813781 is a wasteful number, since it uses less digits than its factorization.

104366813781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192489.

The product of its (nonzero) digits is 580608, while the sum is 48.

The spelling of 104366813781 in words is "one hundred four billion, three hundred sixty-six million, eight hundred thirteen thousand, seven hundred eighty-one".

Divisors: 1 3 19 57 89 107 267 321 1691 2033 5073 6099 9523 28569 180937 192271 542811 576813 3653149 10959447 17112119 20572997 51336357 61718991 325130261 390886943 975390783 1172660829 1830996733 5492990199 34788937927 104366813781