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20854482252 = 22379197111667
BaseRepresentation
bin10011011011000001…
…100010010101001100
31222211101101110112120
4103123001202111030
5320202221413002
613325211532540
71335536113542
oct233301422514
958741343476
1020854482252
1189318a21aa
12406015a150
131c74725136
14101b993d92
15820ca5cbc
hex4db06254c

20854482252 has 48 divisors (see below), whose sum is σ = 49526991360. Its totient is φ = 6828599232.

The previous prime is 20854482227. The next prime is 20854482281. The reversal of 20854482252 is 25228445802.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130923 + ... + 242589.

It is an arithmetic number, because the mean of its divisors is an integer number (1031812320).

Almost surely, 220854482252 is an apocalyptic number.

It is an amenable number.

20854482252 is an abundant number, since it is smaller than the sum of its proper divisors (28672509108).

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

20854482252 is a wasteful number, since it uses less digits than its factorization.

20854482252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111950 (or 111948 counting only the distinct ones).

The product of its (nonzero) digits is 409600, while the sum is 42.

The spelling of 20854482252 in words is "twenty billion, eight hundred fifty-four million, four hundred eighty-two thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 79 158 197 237 316 394 474 591 788 948 1182 2364 15563 31126 46689 62252 93378 111667 186756 223334 335001 446668 670002 1340004 8821693 17643386 21998399 26465079 35286772 43996798 52930158 65995197 87993596 105860316 131990394 263980788 1737873521 3475747042 5213620563 6951494084 10427241126 20854482252