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23283975 = 35211132167
BaseRepresentation
bin101100011010…
…0100100000111
31121210221121110
41120310210013
521430041400
62151020103
7401624211
oct130644407
947727543
1023283975
1112163660
12796a633
134a93100
1431415b1
15209de50
hex1634907

23283975 has 72 divisors (see below), whose sum is σ = 45747072. Its totient is φ = 10358400.

The previous prime is 23283973. The next prime is 23283979. The reversal of 23283975 is 57938232.

It is not a de Polignac number, because 23283975 - 21 = 23283973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23283971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 139342 + ... + 139508.

It is an arithmetic number, because the mean of its divisors is an integer number (635376).

Almost surely, 223283975 is an apocalyptic number.

23283975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23283975 is a deficient number, since it is larger than the sum of its proper divisors (22463097).

23283975 is a wasteful number, since it uses less digits than its factorization.

23283975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 199 counting only the distinct ones).

The product of its digits is 90720, while the sum is 39.

The square root of 23283975 is about 4825.3471377715. The cubic root of 23283975 is about 285.5523299397.

The spelling of 23283975 in words is "twenty-three million, two hundred eighty-three thousand, nine hundred seventy-five".

Divisors: 1 3 5 11 13 15 25 33 39 55 65 75 143 165 167 169 195 275 325 429 501 507 715 825 835 845 975 1837 1859 2145 2171 2505 2535 3575 4175 4225 5511 5577 6513 9185 9295 10725 10855 12525 12675 23881 27555 27885 28223 32565 45925 46475 54275 71643 84669 119405 137775 139425 141115 162825 310453 358215 423345 597025 705575 931359 1552265 1791075 2116725 4656795 7761325 23283975