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23380398 = 2321298911
BaseRepresentation
bin101100100110…
…0000110101110
31121222211212200
41121030012232
521441133043
62153042330
7402505266
oct131140656
947884780
1023380398
111221a048
1279b63a6
134ac7c72
1431687a6
1520bc7d3
hex164c1ae

23380398 has 12 divisors (see below), whose sum is σ = 50657568. Its totient is φ = 7793460.

The previous prime is 23380369. The next prime is 23380429. The reversal of 23380398 is 89308332.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 649438 + ... + 649473.

It is an arithmetic number, because the mean of its divisors is an integer number (4221464).

Almost surely, 223380398 is an apocalyptic number.

23380398 is an abundant number, since it is smaller than the sum of its proper divisors (27277170).

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

23380398 is a wasteful number, since it uses less digits than its factorization.

23380398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1298919 (or 1298916 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 23380398 is about 4835.3281170982. The cubic root of 23380398 is about 285.9459610683.

The spelling of 23380398 in words is "twenty-three million, three hundred eighty thousand, three hundred ninety-eight".

Divisors: 1 2 3 6 9 18 1298911 2597822 3896733 7793466 11690199 23380398