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23986045 = 529433847
BaseRepresentation
bin101101101111…
…1111101111101
31200010121200001
41123133331331
522120023140
62214034301
7410610106
oct133377575
950117601
1023986045
11125a3086
128048991
134c7a835
1432853ad
15218be9a
hex16dff7d

23986045 has 16 divisors (see below), whose sum is σ = 30476160. Its totient is φ = 18091584.

The previous prime is 23986021. The next prime is 23986049. The reversal of 23986045 is 54068932.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23986045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23985995 and 23986013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23986049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4312 + ... + 8158.

It is an arithmetic number, because the mean of its divisors is an integer number (1904760).

Almost surely, 223986045 is an apocalyptic number.

It is an amenable number.

23986045 is a deficient number, since it is larger than the sum of its proper divisors (6490115).

23986045 is a wasteful number, since it uses less digits than its factorization.

23986045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3924.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 23986045 is about 4897.5550022435. Note that the first 3 decimals coincide. The cubic root of 23986045 is about 288.3939960200.

The spelling of 23986045 in words is "twenty-three million, nine hundred eighty-six thousand, forty-five".

Divisors: 1 5 29 43 145 215 1247 3847 6235 19235 111563 165421 557815 827105 4797209 23986045