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23231460 = 2235755313
BaseRepresentation
bin101100010011…
…1101111100100
31121201021120110
41120213233210
521421401320
62145533020
7401315130
oct130475744
947637513
1023231460
111212815a
127944170
134a75235
14312a3c0
15208d5e0
hex1627be4

23231460 has 48 divisors (see below), whose sum is σ = 74342016. Its totient is φ = 5309952.

The previous prime is 23231399. The next prime is 23231473. The reversal of 23231460 is 6413232.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27237 + ... + 28076.

It is an arithmetic number, because the mean of its divisors is an integer number (1548792).

Almost surely, 223231460 is an apocalyptic number.

23231460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23231460 is an abundant number, since it is smaller than the sum of its proper divisors (51110556).

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

23231460 is a wasteful number, since it uses less digits than its factorization.

23231460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55332 (or 55330 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 23231460 is about 4819.9024886402. The cubic root of 23231460 is about 285.3374887789.

Adding to 23231460 its reverse (6413232), we get a palindrome (29644692).

The spelling of 23231460 in words is "twenty-three million, two hundred thirty-one thousand, four hundred sixty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 55313 110626 165939 221252 276565 331878 387191 553130 663756 774382 829695 1106260 1161573 1548764 1659390 1935955 2323146 3318780 3871910 4646292 5807865 7743820 11615730 23231460