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102021110984 = 2313980972221
BaseRepresentation
bin101111100000011101…
…1101001110011001000
3100202100000201102022002
41133000323221303020
53132414401022414
6114511242250132
710241115064232
oct1370073516310
9322300642262
10102021110984
113a2a3291761
12179327b6948
13980b468ac0
144d1b653252
1529c18bc4de
hex17c0ee9cc8

102021110984 has 16 divisors (see below), whose sum is σ = 206004166620. Its totient is φ = 47086666560.

The previous prime is 102021110977. The next prime is 102021110993. The reversal of 102021110984 is 489011120201.

It can be written as a sum of positive squares in 2 ways, for example, as 101092202500 + 928908484 = 317950^2 + 30478^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 490486007 + ... + 490486214.

Almost surely, 2102021110984 is an apocalyptic number.

It is an amenable number.

102021110984 is an abundant number, since it is smaller than the sum of its proper divisors (103983055636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102021110984 is a wasteful number, since it uses less digits than its factorization.

102021110984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980972240 (or 980972236 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 102021110984 in words is "one hundred two billion, twenty-one million, one hundred ten thousand, nine hundred eighty-four".

Divisors: 1 2 4 8 13 26 52 104 980972221 1961944442 3923888884 7847777768 12752638873 25505277746 51010555492 102021110984