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57054330 = 2325633937
BaseRepresentation
bin1101100110100…
…1010001111010
310222100122211100
43121221101322
5104101214310
65354512230
71261645104
oct331512172
9128318740
1057054330
112a229843
1217135676
13ba88278
147812574
15501eec0
hex366947a

57054330 has 24 divisors (see below), whose sum is σ = 148341492. Its totient is φ = 15214464.

The previous prime is 57054323. The next prime is 57054343. The reversal of 57054330 is 3345075.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51279921 + 5774409 = 7161^2 + 2403^2 .

It is a junction number, because it is equal to n+sod(n) for n = 57054294 and 57054303.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316879 + ... + 317058.

Almost surely, 257054330 is an apocalyptic number.

57054330 is an abundant number, since it is smaller than the sum of its proper divisors (91287162).

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

57054330 is a wasteful number, since it uses less digits than its factorization.

57054330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633950 (or 633947 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 57054330 is about 7553.4316704396. The cubic root of 57054330 is about 384.9723486072.

The spelling of 57054330 in words is "fifty-seven million, fifty-four thousand, three hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 633937 1267874 1901811 3169685 3803622 5705433 6339370 9509055 11410866 19018110 28527165 57054330