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23216368 = 247972137
BaseRepresentation
bin101100010010…
…0000011110000
31121200111212111
41120210003300
521420410433
62145335104
7401223130
oct130440360
947614774
1023216368
111211788a
127937494
134a6b3c6
143124ac0
152088dcd
hex16240f0

23216368 has 40 divisors (see below), whose sum is σ = 51961952. Its totient is φ = 9842688.

The previous prime is 23216363. The next prime is 23216377. The reversal of 23216368 is 86361232.

It is a super-2 number, since 2×232163682 = 1077999486222848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23216363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9796 + ... + 11932.

Almost surely, 223216368 is an apocalyptic number.

23216368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23216368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25980976).

23216368 is an abundant number, since it is smaller than the sum of its proper divisors (28745584).

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

23216368 is a wasteful number, since it uses less digits than its factorization.

23216368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249 (or 2243 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 23216368 is about 4818.3366424525. The cubic root of 23216368 is about 285.2756868627.

The spelling of 23216368 in words is "twenty-three million, two hundred sixteen thousand, three hundred sixty-eight".

Divisors: 1 2 4 7 8 14 16 28 56 97 112 194 388 679 776 1358 1552 2137 2716 4274 5432 8548 10864 14959 17096 29918 34192 59836 119672 207289 239344 414578 829156 1451023 1658312 2902046 3316624 5804092 11608184 23216368