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23038472 = 2316972
BaseRepresentation
bin101011111100…
…0101000001000
31121100110211202
41113320220020
521344212342
62141443332
7366552362
oct127705010
947313752
1023038472
1112006166
127870548
134a08442
1430b9d32
152051332
hex15f8a08

23038472 has 12 divisors (see below), whose sum is σ = 43222605. Its totient is φ = 11512448.

The previous prime is 23038459. The next prime is 23038481. The reversal of 23038472 is 27483032.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 15888196 + 7150276 = 3986^2 + 2674^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=3394.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 12728 + ... + 14424.

Almost surely, 223038472 is an apocalyptic number.

It is an amenable number.

23038472 is a deficient number, since it is larger than the sum of its proper divisors (20184133).

23038472 is an frugal number, since it uses more digits than its factorization.

23038472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3400 (or 1699 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 23038472 is about 4799.8408306943. The cubic root of 23038472 is about 284.5451737885.

The spelling of 23038472 in words is "twenty-three million, thirty-eight thousand, four hundred seventy-two".

Divisors: 1 2 4 8 1697 3394 6788 13576 2879809 5759618 11519236 23038472