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57229490 = 255722949
BaseRepresentation
bin1101101001010…
…0000010110010
310222200120002202
43122110002302
5104122320430
65402343202
71263304553
oct332240262
9128616082
1057229490
112a3393aa
12171bab02
13bb19c06
14785a32a
155056d45
hex36940b2

57229490 has 8 divisors (see below), whose sum is σ = 103013100. Its totient is φ = 22891792.

The previous prime is 57229489. The next prime is 57229507. The reversal of 57229490 is 9492275.

It can be written as a sum of positive squares in 2 ways, for example, as 56505289 + 724201 = 7517^2 + 851^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2861465 + ... + 2861484.

Almost surely, 257229490 is an apocalyptic number.

57229490 is a deficient number, since it is larger than the sum of its proper divisors (45783610).

57229490 is a wasteful number, since it uses less digits than its factorization.

57229490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722956.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 57229490 is about 7565.0175148508. The cubic root of 57229490 is about 385.3659083809.

The spelling of 57229490 in words is "fifty-seven million, two hundred twenty-nine thousand, four hundred ninety".

Divisors: 1 2 5 10 5722949 11445898 28614745 57229490