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23830417540 = 2252394985443
BaseRepresentation
bin10110001100011001…
…110101000010000100
32021111210010122022001
4112030121311002010
5342301041330130
614540400315044
71502353130656
oct261431650204
967453118261
1023830417540
11a119716456
124750912a84
13232a1320a7
141220cd46d6
159471946ca
hex58c675084

23830417540 has 24 divisors (see below), whose sum is σ = 50253275520. Its totient is φ = 9492281568.

The previous prime is 23830417529. The next prime is 23830417549. The reversal of 23830417540 is 4571403832.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 23830417540.

It is not an unprimeable number, because it can be changed into a prime (23830417549) 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, 2487942 + ... + 2497501.

It is an arithmetic number, because the mean of its divisors is an integer number (2093886480).

Almost surely, 223830417540 is an apocalyptic number.

23830417540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23830417540 is an abundant number, since it is smaller than the sum of its proper divisors (26422857980).

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

23830417540 is a wasteful number, since it uses less digits than its factorization.

23830417540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4985691 (or 4985689 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 23830417540 in words is "twenty-three billion, eight hundred thirty million, four hundred seventeen thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 239 478 956 1195 2390 4780 4985443 9970886 19941772 24927215 49854430 99708860 1191520877 2383041754 4766083508 5957604385 11915208770 23830417540