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23769140 = 2251188457
BaseRepresentation
bin101101010101…
…1000000110100
31122201121010112
41122223000310
522041103030
62205242152
7406014533
oct132530064
948647115
1023769140
111246511a
127b63358
134c02ba5
14322a31a
152147a95
hex16ab034

23769140 has 12 divisors (see below), whose sum is σ = 49915236. Its totient is φ = 9507648.

The previous prime is 23769131. The next prime is 23769191. The reversal of 23769140 is 4196732.

It can be written as a sum of positive squares in 2 ways, for example, as 5484964 + 18284176 = 2342^2 + 4276^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23769097 and 23769106.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 594209 + ... + 594248.

It is an arithmetic number, because the mean of its divisors is an integer number (4159603).

Almost surely, 223769140 is an apocalyptic number.

23769140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23769140 is an abundant number, since it is smaller than the sum of its proper divisors (26146096).

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

23769140 is a wasteful number, since it uses less digits than its factorization.

23769140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188466 (or 1188464 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 23769140 is about 4875.3604994913. The cubic root of 23769140 is about 287.5220499786.

The spelling of 23769140 in words is "twenty-three million, seven hundred sixty-nine thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1188457 2376914 4753828 5942285 11884570 23769140