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30423057 = 371448717
BaseRepresentation
bin111010000001…
…1100000010001
32010020122120220
41310003200101
530242014212
63004023253
7516406650
oct164034021
963218526
1030423057
111619a325
12a231b29
1363c2712
14407d197
152a0e38c
hex1d03811

30423057 has 8 divisors (see below), whose sum is σ = 46358976. Its totient is φ = 17384592.

The previous prime is 30423049. The next prime is 30423067. The reversal of 30423057 is 75032403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30423057 - 23 = 30423049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30423017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724338 + ... + 724379.

It is an arithmetic number, because the mean of its divisors is an integer number (5794872).

Almost surely, 230423057 is an apocalyptic number.

It is an amenable number.

30423057 is a deficient number, since it is larger than the sum of its proper divisors (15935919).

30423057 is a wasteful number, since it uses less digits than its factorization.

30423057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1448727.

The product of its (nonzero) digits is 2520, while the sum is 24.

The square root of 30423057 is about 5515.7100177584. The cubic root of 30423057 is about 312.1770342263.

The spelling of 30423057 in words is "thirty million, four hundred twenty-three thousand, fifty-seven".

Divisors: 1 3 7 21 1448717 4346151 10141019 30423057