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23016825 = 3352134361
BaseRepresentation
bin101011111001…
…1010101111001
31121022101011000
41113303111321
521343014300
62141155213
7366432306
oct127632571
947271130
1023016825
1111aa0977
12785bb09
1349cb630
1430b20ad
152049c00
hex15f3579

23016825 has 96 divisors (see below), whose sum is σ = 47358080. Its totient is φ = 10886400.

The previous prime is 23016823. The next prime is 23016853. The reversal of 23016825 is 52861032.

It is not a de Polignac number, because 23016825 - 21 = 23016823 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (23016821) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 377295 + ... + 377355.

Almost surely, 223016825 is an apocalyptic number.

23016825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23016825 is an abundant number, since it is smaller than the sum of its proper divisors (24341255).

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

23016825 is a wasteful number, since it uses less digits than its factorization.

23016825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 23016825 is about 4797.5853301427. The cubic root of 23016825 is about 284.4560261002.

Adding to 23016825 its reverse (52861032), we get a palindrome (75877857).

The spelling of 23016825 in words is "twenty-three million, sixteen thousand, eight hundred twenty-five".

Divisors: 1 3 5 9 13 15 25 27 39 43 45 61 65 75 117 129 135 183 195 215 225 305 325 351 387 549 559 585 645 675 793 915 975 1075 1161 1525 1647 1677 1755 1935 2379 2623 2745 2795 2925 3225 3965 4575 5031 5805 7137 7869 8235 8385 8775 9675 11895 13115 13725 13975 15093 19825 21411 23607 25155 29025 34099 35685 39345 41175 41925 59475 65575 70821 75465 102297 107055 118035 125775 170495 178425 196725 306891 354105 377325 511485 535275 590175 852475 920673 1534455 1770525 2557425 4603365 7672275 23016825