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23460381 = 3371011229
BaseRepresentation
bin101100101111…
…1101000011101
31122010220121000
41121133220131
522001213011
62154500513
7403260420
oct131375035
948126530
1023460381
111227414a
127a34739
134b254a9
1431899b7
1520d6356
hex165fa1d

23460381 has 32 divisors (see below), whose sum is σ = 40147200. Its totient is φ = 13262400.

The previous prime is 23460343. The next prime is 23460401. The reversal of 23460381 is 18306432.

It is a happy number.

It is not a de Polignac number, because 23460381 - 217 = 23329309 is a prime.

It is a super-2 number, since 2×234603812 = 1100778953330322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23460301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18475 + ... + 19703.

It is an arithmetic number, because the mean of its divisors is an integer number (1254600).

Almost surely, 223460381 is an apocalyptic number.

23460381 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23460381 is a deficient number, since it is larger than the sum of its proper divisors (16686819).

23460381 is a wasteful number, since it uses less digits than its factorization.

23460381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 23460381 is about 4843.5917458019. The cubic root of 23460381 is about 286.2716581949.

The spelling of 23460381 in words is "twenty-three million, four hundred sixty thousand, three hundred eighty-one".

Divisors: 1 3 7 9 21 27 63 101 189 303 707 909 1229 2121 2727 3687 6363 8603 11061 19089 25809 33183 77427 124129 232281 372387 868903 1117161 2606709 3351483 7820127 23460381