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23163630 = 2357731511
BaseRepresentation
bin101100001011…
…1001011101110
31121120211112020
41120113023232
521412214010
62144251010
7400613310
oct130271356
947524466
1023163630
11120911a6
127910a66
134a503b9
14310d7b0
152078470
hex16172ee

23163630 has 64 divisors (see below), whose sum is σ = 64447488. Its totient is φ = 5218560.

The previous prime is 23163629. The next prime is 23163631. The reversal of 23163630 is 3636132.

It is an interprime number because it is at equal distance from previous prime (23163629) and next prime (23163631).

It is a self number, because there is not a number n which added to its sum of digits gives 23163630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23163631) 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, 14575 + ... + 16085.

It is an arithmetic number, because the mean of its divisors is an integer number (1006992).

Almost surely, 223163630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23163630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32223744).

23163630 is an abundant number, since it is smaller than the sum of its proper divisors (41283858).

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

23163630 is a wasteful number, since it uses less digits than its factorization.

23163630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601.

The product of its (nonzero) digits is 1944, while the sum is 24.

The square root of 23163630 is about 4812.8608955589. The cubic root of 23163630 is about 285.0595135795.

Adding to 23163630 its reverse (3636132), we get a palindrome (26799762).

The spelling of 23163630 in words is "twenty-three million, one hundred sixty-three thousand, six hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 73 105 146 210 219 365 438 511 730 1022 1095 1511 1533 2190 2555 3022 3066 4533 5110 7555 7665 9066 10577 15110 15330 21154 22665 31731 45330 52885 63462 105770 110303 158655 220606 317310 330909 551515 661818 772121 1103030 1544242 1654545 2316363 3309090 3860605 4632726 7721210 11581815 23163630