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104487830781 = 3107569572069
BaseRepresentation
bin110000101001111110…
…1011100010011111101
3100222200221021202201120
41201103331130103331
53202442341041111
6120000120501153
710356206623155
oct1412375342375
9328627252646
10104487830781
1140349724864
121830091a7b9
139b12515209
1450b30bd765
152ab8222406
hex1853f5c4fd

104487830781 has 16 divisors (see below), whose sum is σ = 140866516800. Its totient is φ = 68886140288.

The previous prime is 104487830771. The next prime is 104487830833. The reversal of 104487830781 is 187038784401.

It is a cyclic number.

It is not a de Polignac number, because 104487830781 - 26 = 104487830717 is a prime.

It is a super-2 number, since 2×1044878307812 (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 (104487830771) 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, 103386 + ... + 468683.

It is an arithmetic number, because the mean of its divisors is an integer number (8804157300).

Almost surely, 2104487830781 is an apocalyptic number.

It is an amenable number.

104487830781 is a deficient number, since it is larger than the sum of its proper divisors (36378686019).

104487830781 is a wasteful number, since it uses less digits than its factorization.

104487830781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572748.

The product of its (nonzero) digits is 1204224, while the sum is 51.

The spelling of 104487830781 in words is "one hundred four billion, four hundred eighty-seven million, eight hundred thirty thousand, seven hundred eighty-one".

Divisors: 1 3 107 321 569 1707 60883 182649 572069 1716207 61211383 183634149 325507261 976521783 34829276927 104487830781