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104721415877 = 1311816820909
BaseRepresentation
bin110000110000111100…
…0011111111011000101
3101000022012211010020102
41201201320133323011
53203432140302002
6120035223213445
710365044230241
oct1414170377305
9330265733212
10104721415877
11404595667a1
1218366ba7285
139b4ba2b250
1450d6125421
152acd9b2a02
hex1861e1fec5

104721415877 has 8 divisors (see below), whose sum is σ = 112872418680. Its totient is φ = 96584057280.

The previous prime is 104721415861. The next prime is 104721415973. The reversal of 104721415877 is 778514127401.

It can be written as a sum of positive squares in 4 ways, for example, as 17551215361 + 87170200516 = 132481^2 + 295246^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 104721415877 - 24 = 104721415861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104721435877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3395102 + ... + 3425807.

It is an arithmetic number, because the mean of its divisors is an integer number (14109052335).

Almost surely, 2104721415877 is an apocalyptic number.

It is an amenable number.

104721415877 is a deficient number, since it is larger than the sum of its proper divisors (8151002803).

104721415877 is a wasteful number, since it uses less digits than its factorization.

104721415877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822103.

The product of its (nonzero) digits is 439040, while the sum is 47.

The spelling of 104721415877 in words is "one hundred four billion, seven hundred twenty-one million, four hundred fifteen thousand, eight hundred seventy-seven".

Divisors: 1 13 1181 15353 6820909 88671817 8055493529 104721415877