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2557572 = 223213131
BaseRepresentation
bin1001110000011010000100
311210221022220
421300122010
51123320242
6130452340
730511323
oct11603204
94727286
102557572
1114975a6
12a340b0
136b7174
144a80ba
15357bec
hex270684

2557572 has 12 divisors (see below), whose sum is σ = 5967696. Its totient is φ = 852520.

The previous prime is 2557567. The next prime is 2557601. The reversal of 2557572 is 2757552.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106554 + ... + 106577.

It is an arithmetic number, because the mean of its divisors is an integer number (497308).

22557572 is an apocalyptic number.

It is an amenable number.

2557572 is an abundant number, since it is smaller than the sum of its proper divisors (3410124).

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

2557572 is a wasteful number, since it uses less digits than its factorization.

2557572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213138 (or 213136 counting only the distinct ones).

The product of its digits is 24500, while the sum is 33.

The square root of 2557572 is about 1599.2410700079. The cubic root of 2557572 is about 136.7548139126.

The spelling of 2557572 in words is "two million, five hundred fifty-seven thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 12 213131 426262 639393 852524 1278786 2557572