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57012629 = 166334283
BaseRepresentation
bin1101100101111…
…1000110010101
310222021112121212
43121133012111
5104043401004
65353551205
71261412402
oct331370625
9128245555
1057012629
112a200483
1217115505
13ba722ab
1478012a9
15501296e
hex365f195

57012629 has 4 divisors (see below), whose sum is σ = 57048576. Its totient is φ = 56976684.

The previous prime is 57012601. The next prime is 57012707. The reversal of 57012629 is 92621075.

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-57012629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57012595 and 57012604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57012029) 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, 15479 + ... + 18804.

It is an arithmetic number, because the mean of its divisors is an integer number (14262144).

Almost surely, 257012629 is an apocalyptic number.

It is an amenable number.

57012629 is a deficient number, since it is larger than the sum of its proper divisors (35947).

57012629 is a wasteful number, since it uses less digits than its factorization.

57012629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35946.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 57012629 is about 7550.6707649056. The cubic root of 57012629 is about 384.8785336726.

The spelling of 57012629 in words is "fifty-seven million, twelve thousand, six hundred twenty-nine".

Divisors: 1 1663 34283 57012629