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23478952 = 2372318229
BaseRepresentation
bin101100110010…
…0001010101000
31122011212001211
41121210022220
522002311302
62155122504
7403365520
oct131441250
948155054
1023478952
11122870a2
127a43434
134b30a93
143192680
1520dbad7
hex16642a8

23478952 has 32 divisors (see below), whose sum is σ = 52502400. Its totient is φ = 9624384.

The previous prime is 23478941. The next prime is 23478967. The reversal of 23478952 is 25987432.

It is a super-2 number, since 2×234789522 = 1102522374036608, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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, 7827 + ... + 10402.

It is an arithmetic number, because the mean of its divisors is an integer number (1640700).

Almost surely, 223478952 is an apocalyptic number.

It is an amenable number.

23478952 is an abundant number, since it is smaller than the sum of its proper divisors (29023448).

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

23478952 is a wasteful number, since it uses less digits than its factorization.

23478952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18265 (or 18261 counting only the distinct ones).

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

The square root of 23478952 is about 4845.5084356546. The cubic root of 23478952 is about 286.3471748541.

The spelling of 23478952 in words is "twenty-three million, four hundred seventy-eight thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 14 23 28 46 56 92 161 184 322 644 1288 18229 36458 72916 127603 145832 255206 419267 510412 838534 1020824 1677068 2934869 3354136 5869738 11739476 23478952