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23058140 = 2257164701
BaseRepresentation
bin101011111110…
…1011011011100
31121101110211012
41113331123130
521400330030
62142114352
7366663620
oct127753334
947343735
1023058140
1112019a16
12787b9b8
134a14391
1430c3180
152057095
hex15fd6dc

23058140 has 24 divisors (see below), whose sum is σ = 55339872. Its totient is φ = 7905600.

The previous prime is 23058131. The next prime is 23058149. The reversal of 23058140 is 4185032.

It is an interprime number because it is at equal distance from previous prime (23058131) and next prime (23058149).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23058149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82211 + ... + 82490.

It is an arithmetic number, because the mean of its divisors is an integer number (2305828).

Almost surely, 223058140 is an apocalyptic number.

23058140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23058140 is an abundant number, since it is smaller than the sum of its proper divisors (32281732).

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

23058140 is a wasteful number, since it uses less digits than its factorization.

23058140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164717 (or 164715 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 23058140 is about 4801.8892115500. The cubic root of 23058140 is about 284.6261230613.

The spelling of 23058140 in words is "twenty-three million, fifty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 164701 329402 658804 823505 1152907 1647010 2305814 3294020 4611628 5764535 11529070 23058140