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23420148 = 2231979907
BaseRepresentation
bin101100101010…
…1110011110100
31122001212101220
41121111303310
521443421043
62153550340
7403032213
oct131256364
948055356
1023420148
11122469a4
127a153b0
134b1009b
14317907a
1520c9483
hex1655cf4

23420148 has 24 divisors (see below), whose sum is σ = 54929952. Its totient is φ = 7766304.

The previous prime is 23420123. The next prime is 23420167. The reversal of 23420148 is 84102432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2590 + ... + 7317.

It is an arithmetic number, because the mean of its divisors is an integer number (2288748).

Almost surely, 223420148 is an apocalyptic number.

It is an amenable number.

23420148 is an abundant number, since it is smaller than the sum of its proper divisors (31509804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23420148 is a wasteful number, since it uses less digits than its factorization.

23420148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10111 (or 10109 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 23420148 is about 4839.4367440850. The cubic root of 23420148 is about 286.1079189123.

The spelling of 23420148 in words is "twenty-three million, four hundred twenty thousand, one hundred forty-eight".

Divisors: 1 2 3 4 6 12 197 394 591 788 1182 2364 9907 19814 29721 39628 59442 118884 1951679 3903358 5855037 7806716 11710074 23420148