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23443808 = 252353601
BaseRepresentation
bin101100101101…
…1100101100000
31122010001212012
41121123211200
522000200213
62154252052
7403161203
oct131334540
948101765
1023443808
1112262753
127a27028
134b1aa9b
14318393a
1520d14a8
hex165b960

23443808 has 48 divisors (see below), whose sum is σ = 49152096. Its totient is φ = 10982400.

The previous prime is 23443793. The next prime is 23443811. The reversal of 23443808 is 80834432.

It is a super-2 number, since 2×234438082 = 1099224267081728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38708 + ... + 39308.

It is an arithmetic number, because the mean of its divisors is an integer number (1024002).

Almost surely, 223443808 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 23443808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24576048).

23443808 is an abundant number, since it is smaller than the sum of its proper divisors (25708288).

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

23443808 is a wasteful number, since it uses less digits than its factorization.

23443808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 23443808 is about 4841.8806263682. The cubic root of 23443808 is about 286.2042324951.

It can be divided in two parts, 2 and 3443808, that multiplied together give a triangular number (6887616 = T3711).

The spelling of 23443808 in words is "twenty-three million, four hundred forty-three thousand, eight hundred eight".

Divisors: 1 2 4 8 16 23 32 46 53 92 106 184 212 368 424 601 736 848 1202 1219 1696 2404 2438 4808 4876 9616 9752 13823 19232 19504 27646 31853 39008 55292 63706 110584 127412 221168 254824 442336 509648 732619 1019296 1465238 2930476 5860952 11721904 23443808