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23348980 = 2251167449
BaseRepresentation
bin101100100010…
…0011011110100
31121221020210001
41121010123310
521434131410
62152241044
7402314554
oct131043364
947836701
1023348980
11121a8486
1279a0184
134ab6885
14315b164
1520b333a
hex16446f4

23348980 has 12 divisors (see below), whose sum is σ = 49032900. Its totient is φ = 9339584.

The previous prime is 23348959. The next prime is 23348981. The reversal of 23348980 is 8984332.

It can be written as a sum of positive squares in 2 ways, for example, as 12773476 + 10575504 = 3574^2 + 3252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23348981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583705 + ... + 583744.

It is an arithmetic number, because the mean of its divisors is an integer number (4086075).

Almost surely, 223348980 is an apocalyptic number.

23348980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23348980 is an abundant number, since it is smaller than the sum of its proper divisors (25683920).

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

23348980 is a wasteful number, since it uses less digits than its factorization.

23348980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167458 (or 1167456 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 23348980 is about 4832.0782278436. The cubic root of 23348980 is about 285.8178212863.

The spelling of 23348980 in words is "twenty-three million, three hundred forty-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 1167449 2334898 4669796 5837245 11674490 23348980