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23512179380 = 2256831721243
BaseRepresentation
bin10101111001011011…
…110110001010110100
32020200121022110121112
4111321123312022310
5341123104220010
614445031334152
71461440140634
oct257133661264
966617273545
1023512179380
119a76015408
124682221358
1322a9219aa1
1411d09346c4
15929281a05
hex5796f62b4

23512179380 has 24 divisors (see below), whose sum is σ = 49447897632. Its totient is φ = 9391096352.

The previous prime is 23512179373. The next prime is 23512179391. The reversal of 23512179380 is 8397121532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846962 + ... + 874281.

It is an arithmetic number, because the mean of its divisors is an integer number (2060329068).

Almost surely, 223512179380 is an apocalyptic number.

23512179380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23512179380 is an abundant number, since it is smaller than the sum of its proper divisors (25935718252).

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

23512179380 is a wasteful number, since it uses less digits than its factorization.

23512179380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721935 (or 1721933 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 23512179380 in words is "twenty-three billion, five hundred twelve million, one hundred seventy-nine thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 683 1366 2732 3415 6830 13660 1721243 3442486 6884972 8606215 17212430 34424860 1175608969 2351217938 4702435876 5878044845 11756089690 23512179380