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23086830 = 2351359197
BaseRepresentation
bin101100000010…
…0011011101110
31121102221011210
41120010123232
521402234310
62142455250
7400143354
oct130043356
947387153
1023086830
1112039528
127894526
134a24460
1430cd7d4
152060820
hex16046ee

23086830 has 32 divisors (see below), whose sum is σ = 59671584. Its totient is φ = 5682816.

The previous prime is 23086807. The next prime is 23086837. The reversal of 23086830 is 3868032.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23086837) 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, 29209 + ... + 29988.

It is an arithmetic number, because the mean of its divisors is an integer number (1864737).

Almost surely, 223086830 is an apocalyptic number.

23086830 is an abundant number, since it is smaller than the sum of its proper divisors (36584754).

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

23086830 is a wasteful number, since it uses less digits than its factorization.

23086830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59220.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 23086830 is about 4804.8756487551. The cubic root of 23086830 is about 284.7441224461.

The spelling of 23086830 in words is "twenty-three million, eighty-six thousand, eight hundred thirty".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 195 390 59197 118394 177591 295985 355182 591970 769561 887955 1539122 1775910 2308683 3847805 4617366 7695610 11543415 23086830