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57222234 = 2331059671
BaseRepresentation
bin1101101001001…
…0010001011010
310222200012011000
43122102101122
5104122102414
65402245430
71263244446
oct332222132
9128605130
1057222234
112a333a03
12171b6876
13bb16814
147857826
155054b09
hex369245a

57222234 has 16 divisors (see below), whose sum is σ = 127160640. Its totient is φ = 19074060.

The previous prime is 57222223. The next prime is 57222247. The reversal of 57222234 is 43222275.

It is a super-3 number, since 3×572222343 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 57222198 and 57222207.

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, 529782 + ... + 529889.

It is an arithmetic number, because the mean of its divisors is an integer number (7947540).

Almost surely, 257222234 is an apocalyptic number.

57222234 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

57222234 is an abundant number, since it is smaller than the sum of its proper divisors (69938406).

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

57222234 is a wasteful number, since it uses less digits than its factorization.

57222234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059682 (or 1059676 counting only the distinct ones).

The product of its digits is 6720, while the sum is 27.

The square root of 57222234 is about 7564.5379237598. The cubic root of 57222234 is about 385.3496211298.

The spelling of 57222234 in words is "fifty-seven million, two hundred twenty-two thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 18 27 54 1059671 2119342 3179013 6358026 9537039 19074078 28611117 57222234