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23927140 = 2251196357
BaseRepresentation
bin101101101000…
…1100101100100
31200000121212101
41123101211210
522111132030
62212501444
7410243266
oct133214544
950017771
1023927140
11125628a6
12801a884
134c59a93
14326bb36
1521797ca
hex16d1964

23927140 has 12 divisors (see below), whose sum is σ = 50247036. Its totient is φ = 9570848.

The previous prime is 23927119. The next prime is 23927219. The reversal of 23927140 is 4172932.

It can be written as a sum of positive squares in 2 ways, for example, as 7750656 + 16176484 = 2784^2 + 4022^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23927099 and 23927108.

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, 598159 + ... + 598198.

It is an arithmetic number, because the mean of its divisors is an integer number (4187253).

Almost surely, 223927140 is an apocalyptic number.

23927140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23927140 is an abundant number, since it is smaller than the sum of its proper divisors (26319896).

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

23927140 is a wasteful number, since it uses less digits than its factorization.

23927140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196366 (or 1196364 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 23927140 is about 4891.5375905742. The cubic root of 23927140 is about 288.1577228924.

The spelling of 23927140 in words is "twenty-three million, nine hundred twenty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1196357 2392714 4785428 5981785 11963570 23927140