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57490494 = 2347239853
BaseRepresentation
bin1101101101001…
…1110000111110
311000011211010120
43123103300332
5104204143434
65412115410
71265442525
oct333236076
9130154116
1057490494
112a4a7506
1217305b66
13bbab959
1478c74bc
1550a9349
hex36d3c3e

57490494 has 32 divisors (see below), whose sum is σ = 118056960. Its totient is φ = 18655392.

The previous prime is 57490469. The next prime is 57490553. The reversal of 57490494 is 49409475.

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, 66972 + ... + 67824.

It is an arithmetic number, because the mean of its divisors is an integer number (3689280).

Almost surely, 257490494 is an apocalyptic number.

57490494 is an abundant number, since it is smaller than the sum of its proper divisors (60566466).

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

57490494 is a wasteful number, since it uses less digits than its factorization.

57490494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 57490494 is about 7582.2486110652. The cubic root of 57490494 is about 385.9508604345.

The spelling of 57490494 in words is "fifty-seven million, four hundred ninety thousand, four hundred ninety-four".

Divisors: 1 2 3 6 47 94 141 239 282 478 717 853 1434 1706 2559 5118 11233 22466 33699 40091 67398 80182 120273 203867 240546 407734 611601 1223202 9581749 19163498 28745247 57490494