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23097708 = 2232432347
BaseRepresentation
bin101100000011…
…1000101101100
31121110111002200
41120013011230
521403111313
62143021500
7400220154
oct130070554
947414080
1023097708
1112046717
12789a890
134a293aa
1430d3764
152063b73
hex160716c

23097708 has 54 divisors (see below), whose sum is σ = 59947524. Its totient is φ = 7498512.

The previous prime is 23097707. The next prime is 23097709. The reversal of 23097708 is 80779032.

It is an interprime number because it is at equal distance from previous prime (23097707) and next prime (23097709).

It is a super-2 number, since 2×230977082 = 1067008229706528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23097703) 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 17 ways as a sum of consecutive naturals, for example, 66391 + ... + 66737.

Almost surely, 223097708 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23097708, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29973762).

23097708 is an abundant number, since it is smaller than the sum of its proper divisors (36849816).

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

23097708 is a wasteful number, since it uses less digits than its factorization.

23097708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 23097708 is about 4806.0074906309. The cubic root of 23097708 is about 284.7888371198.

The spelling of 23097708 in words is "twenty-three million, ninety-seven thousand, seven hundred eight".

Divisors: 1 2 3 4 6 9 12 18 36 43 86 129 172 258 347 387 516 694 774 1041 1388 1548 1849 2082 3123 3698 4164 5547 6246 7396 11094 12492 14921 16641 22188 29842 33282 44763 59684 66564 89526 134289 179052 268578 537156 641603 1283206 1924809 2566412 3849618 5774427 7699236 11548854 23097708