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23465420 = 22511106661
BaseRepresentation
bin101100110000…
…0110111001100
31122011011111122
41121200313030
522001343140
62154540112
7403311206
oct131406714
948134448
1023465420
1112277a10
127a37638
134b27884
14318b776
1520d7ab5
hex1660dcc

23465420 has 24 divisors (see below), whose sum is σ = 53757648. Its totient is φ = 8532800.

The previous prime is 23465417. The next prime is 23465443. The reversal of 23465420 is 2456432.

23465420 = T1176 + T1177 + ... + T1208.

It is a self number, because there is not a number n which added to its sum of digits gives 23465420.

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, 53111 + ... + 53550.

It is an arithmetic number, because the mean of its divisors is an integer number (2239902).

Almost surely, 223465420 is an apocalyptic number.

23465420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23465420 is an abundant number, since it is smaller than the sum of its proper divisors (30292228).

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

23465420 is a wasteful number, since it uses less digits than its factorization.

23465420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106681 (or 106679 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 23465420 is about 4844.1118897069. Note that the first 3 decimals coincide. The cubic root of 23465420 is about 286.2921525994.

The spelling of 23465420 in words is "twenty-three million, four hundred sixty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 106661 213322 426644 533305 1066610 1173271 2133220 2346542 4693084 5866355 11732710 23465420