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23225690 = 252322569
BaseRepresentation
bin101100010011…
…0010101011010
31121200222122202
41120212111122
521421210230
62145450202
7401262245
oct130462532
947628582
1023225690
1112123894
127940962
134a72717
14312825c
15208ba45
hex162655a

23225690 has 8 divisors (see below), whose sum is σ = 41806260. Its totient is φ = 9290272.

The previous prime is 23225669. The next prime is 23225701. The reversal of 23225690 is 9652232.

It can be written as a sum of positive squares in 2 ways, for example, as 23203489 + 22201 = 4817^2 + 149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×232256902 = 1078865351952200, which contains 22 as substring.

It is a Curzon 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, 1161275 + ... + 1161294.

Almost surely, 223225690 is an apocalyptic number.

23225690 is a deficient number, since it is larger than the sum of its proper divisors (18580570).

23225690 is a wasteful number, since it uses less digits than its factorization.

23225690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2322576.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 23225690 is about 4819.3038916424. The cubic root of 23225690 is about 285.3138637228.

The spelling of 23225690 in words is "twenty-three million, two hundred twenty-five thousand, six hundred ninety".

Divisors: 1 2 5 10 2322569 4645138 11612845 23225690