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23998308 = 2231999859
BaseRepresentation
bin101101110001…
…0111101100100
31200011020111020
41123202331210
522120421213
62214211140
7410660625
oct133427544
950136436
1023998308
1112601314
128053ab0
134c832a9
143289a4c
152190923
hex16e2f64

23998308 has 12 divisors (see below), whose sum is σ = 55996080. Its totient is φ = 7999432.

The previous prime is 23998267. The next prime is 23998319. The reversal of 23998308 is 80389932.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 23998308.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 999918 + ... + 999941.

It is an arithmetic number, because the mean of its divisors is an integer number (4666340).

Almost surely, 223998308 is an apocalyptic number.

It is an amenable number.

23998308 is an abundant number, since it is smaller than the sum of its proper divisors (31997772).

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

23998308 is a wasteful number, since it uses less digits than its factorization.

23998308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999866 (or 1999864 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 23998308 is about 4898.8067934957. The cubic root of 23998308 is about 288.4431353292.

The spelling of 23998308 in words is "twenty-three million, nine hundred ninety-eight thousand, three hundred eight".

Divisors: 1 2 3 4 6 12 1999859 3999718 5999577 7999436 11999154 23998308