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23199340 = 2251159967
BaseRepresentation
bin101100001111…
…1111001101100
31121122122111211
41120133321230
521414334330
62145124204
7401122363
oct130377154
947578454
1023199340
111210600a
127929664
134a63728
14311c7da
152083d2a
hex161fe6c

23199340 has 12 divisors (see below), whose sum is σ = 48718656. Its totient is φ = 9279728.

The previous prime is 23199307. The next prime is 23199343. The reversal of 23199340 is 4399132.

It is not an unprimeable number, because it can be changed into a prime (23199343) 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, 579964 + ... + 580003.

It is an arithmetic number, because the mean of its divisors is an integer number (4059888).

Almost surely, 223199340 is an apocalyptic number.

23199340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23199340 is an abundant number, since it is smaller than the sum of its proper divisors (25519316).

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

23199340 is a wasteful number, since it uses less digits than its factorization.

23199340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159976 (or 1159974 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 23199340 is about 4816.5693185088. The cubic root of 23199340 is about 285.2059248382.

The spelling of 23199340 in words is "twenty-three million, one hundred ninety-nine thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 1159967 2319934 4639868 5799835 11599670 23199340