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57389506270 = 25171917767649
BaseRepresentation
bin110101011100101011…
…100101111011011110
312111010120110222120021
4311130223211323132
51420013203200040
642210412142354
74101110516545
oct653453457336
9174116428507
1057389506270
112237a975528
12b1577679ba
135547981a45
142ac5cbd15c
15175d49d24a
hexd5cae5ede

57389506270 has 32 divisors (see below), whose sum is σ = 115134372000. Its totient is φ = 20468330496.

The previous prime is 57389506261. The next prime is 57389506271. The reversal of 57389506270 is 7260598375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57389506271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8880595 + ... + 8887054.

It is an arithmetic number, because the mean of its divisors is an integer number (3597949125).

Almost surely, 257389506270 is an apocalyptic number.

57389506270 is an abundant number, since it is smaller than the sum of its proper divisors (57744865730).

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

57389506270 is a wasteful number, since it uses less digits than its factorization.

57389506270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17767692.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 57389506270 in words is "fifty-seven billion, three hundred eighty-nine million, five hundred six thousand, two hundred seventy".

Divisors: 1 2 5 10 17 19 34 38 85 95 170 190 323 646 1615 3230 17767649 35535298 88838245 177676490 302050033 337585331 604100066 675170662 1510250165 1687926655 3020500330 3375853310 5738950627 11477901254 28694753135 57389506270