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57470990 = 2537155327
BaseRepresentation
bin1101101100111…
…1000000001110
311000010211101012
43123033000032
5104203032430
65411445222
71265331623
oct333170016
9130124335
1057470990
112a493895
12172b6812
13bba2b05
1478c034a
1550a3695
hex36cf00e

57470990 has 16 divisors (see below), whose sum is σ = 106244352. Its totient is φ = 22366944.

The previous prime is 57470983. The next prime is 57471017. The reversal of 57470990 is 9907475.

It is a happy number.

57470990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77294 + ... + 78033.

It is an arithmetic number, because the mean of its divisors is an integer number (6640272).

Almost surely, 257470990 is an apocalyptic number.

57470990 is a deficient number, since it is larger than the sum of its proper divisors (48773362).

57470990 is a wasteful number, since it uses less digits than its factorization.

57470990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155371.

The product of its (nonzero) digits is 79380, while the sum is 41.

The square root of 57470990 is about 7580.9623399671. The cubic root of 57470990 is about 385.9072101051.

The spelling of 57470990 in words is "fifty-seven million, four hundred seventy thousand, nine hundred ninety".

Divisors: 1 2 5 10 37 74 185 370 155327 310654 776635 1553270 5747099 11494198 28735495 57470990