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23540075 = 521372431
BaseRepresentation
bin101100111001…
…1000101101011
31122021221220122
41121303011223
522011240300
62200313455
7404041646
oct131630553
948257818
1023540075
1112319009
127a7288b
134b52850
1431aaa5d
1520eec85
hex167316b

23540075 has 12 divisors (see below), whose sum is σ = 31435488. Its totient is φ = 17383200.

The previous prime is 23540071. The next prime is 23540089. The reversal of 23540075 is 57004532.

It is not a de Polignac number, because 23540075 - 22 = 23540071 is a prime.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23540071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35891 + ... + 36540.

It is an arithmetic number, because the mean of its divisors is an integer number (2619624).

Almost surely, 223540075 is an apocalyptic number.

23540075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23540075 is a deficient number, since it is larger than the sum of its proper divisors (7895413).

23540075 is a wasteful number, since it uses less digits than its factorization.

23540075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72454 (or 72449 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 23540075 is about 4851.8115173613. The cubic root of 23540075 is about 286.5954430652.

The spelling of 23540075 in words is "twenty-three million, five hundred forty thousand, seventy-five".

Divisors: 1 5 13 25 65 325 72431 362155 941603 1810775 4708015 23540075