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12423057 = 310937991
BaseRepresentation
bin101111011000…
…111110010001
3212101011020020
4233120332101
511140014212
61122134053
7210410553
oct57307621
925334206
1012423057
117015699
1241b1329
13275c72a
1419154d3
151155d8c
hexbd8f91

12423057 has 8 divisors (see below), whose sum is σ = 16716480. Its totient is φ = 8205840.

The previous prime is 12423053. The next prime is 12423071. The reversal of 12423057 is 75032421.

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

It is not a de Polignac number, because 12423057 - 22 = 12423053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12423053) 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, 18669 + ... + 19322.

It is an arithmetic number, because the mean of its divisors is an integer number (2089560).

Almost surely, 212423057 is an apocalyptic number.

It is an amenable number.

12423057 is a deficient number, since it is larger than the sum of its proper divisors (4293423).

12423057 is a wasteful number, since it uses less digits than its factorization.

12423057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38103.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 12423057 is about 3524.6357258588. The cubic root of 12423057 is about 231.6022775928.

Adding to 12423057 its reverse (75032421), we get a palindrome (87455478).

The spelling of 12423057 in words is "twelve million, four hundred twenty-three thousand, fifty-seven".

Divisors: 1 3 109 327 37991 113973 4141019 12423057