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23210992 = 247207241
BaseRepresentation
bin101100010001…
…0101111110000
31121200020111101
41120202233300
521420222432
62145254144
7401201350
oct130425760
947606441
1023210992
1112113842
127934354
134a68b1c
143122b60
1520874e7
hex1622bf0

23210992 has 20 divisors (see below), whose sum is σ = 51396016. Its totient is φ = 9947520.

The previous prime is 23210987. The next prime is 23211029. The reversal of 23210992 is 29901232.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 23210992.

It is a congruent number.

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, 103509 + ... + 103732.

Almost surely, 223210992 is an apocalyptic number.

It is an amenable number.

23210992 is an abundant number, since it is smaller than the sum of its proper divisors (28185024).

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

23210992 is a wasteful number, since it uses less digits than its factorization.

23210992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207256 (or 207250 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 23210992 is about 4817.7787412873. The cubic root of 23210992 is about 285.2536656105.

The spelling of 23210992 in words is "twenty-three million, two hundred ten thousand, nine hundred ninety-two".

Divisors: 1 2 4 7 8 14 16 28 56 112 207241 414482 828964 1450687 1657928 2901374 3315856 5802748 11605496 23210992