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23504545340 = 2253137910557
BaseRepresentation
bin10101111000111110…
…101110011000111100
32020200001221121200022
4111320332232120330
5341114130422330
614444155551312
71461315224153
oct257076563074
966601847608
1023504545340
119a71780891
12467b75b538
1322a77760c3
1411cd90859a
15928774ae5
hex578fae63c

23504545340 has 24 divisors (see below), whose sum is σ = 50951789952. Its totient is φ = 9098533440.

The previous prime is 23504545333. The next prime is 23504545343. The reversal of 23504545340 is 4354540532.

It is a self number, because there is not a number n which added to its sum of digits gives 23504545340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23504545343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18954659 + ... + 18955898.

It is an arithmetic number, because the mean of its divisors is an integer number (2122991248).

Almost surely, 223504545340 is an apocalyptic number.

23504545340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23504545340 is an abundant number, since it is smaller than the sum of its proper divisors (27447244612).

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

23504545340 is a wasteful number, since it uses less digits than its factorization.

23504545340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37910597 (or 37910595 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 35.

The spelling of 23504545340 in words is "twenty-three billion, five hundred four million, five hundred forty-five thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 37910557 75821114 151642228 189552785 379105570 758211140 1175227267 2350454534 4700909068 5876136335 11752272670 23504545340