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22557422552 = 2373112993907
BaseRepresentation
bin10101000000100001…
…101111001111011000
32011020001202210110112
4111000201233033120
5332144200010202
614210203503452
71425664633220
oct250041571730
964201683415
1022557422552
119626093485
124456527b88
132186490b12
14113dc03080
158c053ab52
hex54086f3d8

22557422552 has 32 divisors (see below), whose sum is σ = 49896606720. Its totient is φ = 9355612320.

The previous prime is 22557422543. The next prime is 22557422663. The reversal of 22557422552 is 25522475522.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6495218 + ... + 6498689.

It is an arithmetic number, because the mean of its divisors is an integer number (1559268960).

Almost surely, 222557422552 is an apocalyptic number.

It is an amenable number.

22557422552 is an abundant number, since it is smaller than the sum of its proper divisors (27339184168).

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

22557422552 is a wasteful number, since it uses less digits than its factorization.

22557422552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12993951 (or 12993947 counting only the distinct ones).

The product of its digits is 560000, while the sum is 41.

The spelling of 22557422552 in words is "twenty-two billion, five hundred fifty-seven million, four hundred twenty-two thousand, five hundred fifty-two".

Divisors: 1 2 4 7 8 14 28 31 56 62 124 217 248 434 868 1736 12993907 25987814 51975628 90957349 103951256 181914698 363829396 402811117 727658792 805622234 1611244468 2819677819 3222488936 5639355638 11278711276 22557422552