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23475740 = 2251173787
BaseRepresentation
bin101100110001…
…1011000011100
31122011200122212
41121203120130
522002210430
62155055552
7403353251
oct131433034
948150585
1023475740
1112284742
127a415b8
134b2c492
143191428
1520dab95
hex166361c

23475740 has 12 divisors (see below), whose sum is σ = 49299096. Its totient is φ = 9390288.

The previous prime is 23475737. The next prime is 23475763. The reversal of 23475740 is 4757432.

It is a super-2 number, since 2×234757402 = 1102220737095200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23475697 and 23475706.

It is a congruent number.

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, 586874 + ... + 586913.

It is an arithmetic number, because the mean of its divisors is an integer number (4108258).

Almost surely, 223475740 is an apocalyptic number.

23475740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23475740 is an abundant number, since it is smaller than the sum of its proper divisors (25823356).

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

23475740 is a wasteful number, since it uses less digits than its factorization.

23475740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1173796 (or 1173794 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 23475740 is about 4845.1769833516. The cubic root of 23475740 is about 286.3341165048.

The spelling of 23475740 in words is "twenty-three million, four hundred seventy-five thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 1173787 2347574 4695148 5868935 11737870 23475740