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57269429 = 78181347
BaseRepresentation
bin1101101001110…
…1110010110101
310222202120212222
43122131302311
5104130110204
65403252125
71263532160
oct332356265
9128676788
1057269429
112a366408
121721a045
13bb32149
14786aad7
155063abe
hex369dcb5

57269429 has 4 divisors (see below), whose sum is σ = 65450784. Its totient is φ = 49088076.

The previous prime is 57269411. The next prime is 57269441. The reversal of 57269429 is 92496275.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-57269429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57269429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57269489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4090667 + ... + 4090680.

It is an arithmetic number, because the mean of its divisors is an integer number (16362696).

Almost surely, 257269429 is an apocalyptic number.

It is an amenable number.

57269429 is a deficient number, since it is larger than the sum of its proper divisors (8181355).

57269429 is an equidigital number, since it uses as much as digits as its factorization.

57269429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8181354.

The product of its digits is 272160, while the sum is 44.

The square root of 57269429 is about 7567.6567707580. The cubic root of 57269429 is about 385.4555332115.

The spelling of 57269429 in words is "fifty-seven million, two hundred sixty-nine thousand, four hundred twenty-nine".

Divisors: 1 7 8181347 57269429