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57223068 = 22372273001
BaseRepresentation
bin1101101001001…
…0011110011100
310222200020021220
43122102132130
5104122114233
65402253340
71263250050
oct332223634
9128606256
1057223068
112a3345a1
12171b7250
13bb17006
147857c60
155054eb3
hex369279c

57223068 has 48 divisors (see below), whose sum is σ = 153318144. Its totient is φ = 16272000.

The previous prime is 57223039. The next prime is 57223073. The reversal of 57223068 is 86032275.

It is a super-2 number, since 2×572230682 = 6548959022665248, which contains 22 as substring.

It is a congruent 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, 17568 + ... + 20568.

It is an arithmetic number, because the mean of its divisors is an integer number (3194128).

Almost surely, 257223068 is an apocalyptic number.

It is an amenable number.

57223068 is an abundant number, since it is smaller than the sum of its proper divisors (96095076).

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

57223068 is a wasteful number, since it uses less digits than its factorization.

57223068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242 (or 3240 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 57223068 is about 7564.5930491997. The cubic root of 57223068 is about 385.3514932461.

The spelling of 57223068 in words is "fifty-seven million, two hundred twenty-three thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 227 454 681 908 1362 1589 2724 3001 3178 4767 6002 6356 9003 9534 12004 18006 19068 21007 36012 42014 63021 84028 126042 252084 681227 1362454 2043681 2724908 4087362 4768589 8174724 9537178 14305767 19074356 28611534 57223068