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57423829 = 267121499
BaseRepresentation
bin1101101100001…
…1011111010101
311000001102200111
43123003133111
5104200030304
65410443021
71265044261
oct333033725
9130042614
1057423829
112a461411
1217293471
13bb874c8
1478ab0a1
155094704
hex36c37d5

57423829 has 4 divisors (see below), whose sum is σ = 57448000. Its totient is φ = 57399660.

The previous prime is 57423827. The next prime is 57423859. The reversal of 57423829 is 92832475.

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 not a de Polignac number, because 57423829 - 21 = 57423827 is a prime.

It is a super-2 number, since 2×574238292 = 6594992274042482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57423791 and 57423800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57423827) 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, 8079 + ... + 13420.

It is an arithmetic number, because the mean of its divisors is an integer number (14362000).

Almost surely, 257423829 is an apocalyptic number.

It is an amenable number.

57423829 is a deficient number, since it is larger than the sum of its proper divisors (24171).

57423829 is a wasteful number, since it uses less digits than its factorization.

57423829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24170.

The product of its digits is 120960, while the sum is 40.

The square root of 57423829 is about 7577.8512125800. The cubic root of 57423829 is about 385.8016220482.

The spelling of 57423829 in words is "fifty-seven million, four hundred twenty-three thousand, eight hundred twenty-nine".

Divisors: 1 2671 21499 57423829