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57303669 = 34728647
BaseRepresentation
bin1101101010011…
…0001001110101
310222211022212010
43122212021311
5104132204134
65404114433
71264034043
oct332461165
9128738763
1057303669
112a38a105
1217235a19
13bb448c7
147879393
15506dce9
hex36a6275

57303669 has 12 divisors (see below), whose sum is σ = 78074144. Its totient is φ = 37385304.

The previous prime is 57303667. The next prime is 57303671. The reversal of 57303669 is 96630375.

It is an interprime number because it is at equal distance from previous prime (57303667) and next prime (57303671).

It is not a de Polignac number, because 57303669 - 21 = 57303667 is a prime.

It is a super-2 number, since 2×573036692 = 6567420961723122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57303661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2304 + ... + 10950.

Almost surely, 257303669 is an apocalyptic number.

It is an amenable number.

57303669 is a deficient number, since it is larger than the sum of its proper divisors (20770475).

57303669 is an equidigital number, since it uses as much as digits as its factorization.

57303669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8744 (or 8697 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 39.

The square root of 57303669 is about 7569.9186917694. The cubic root of 57303669 is about 385.5323360731.

It can be divided in two parts, 5730366 and 9, that added together give a palindrome (5730375).

The spelling of 57303669 in words is "fifty-seven million, three hundred three thousand, six hundred sixty-nine".

Divisors: 1 3 47 141 2209 6627 8647 25941 406409 1219227 19101223 57303669