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89312379808 = 2515299182431
BaseRepresentation
bin101001100101101101…
…1101100001110100000
322112112022222222112211
41103023123230032200
52430402432123213
6105010214131504
76311146462651
oct1231333541640
9275468888484
1089312379808
1134971567943
1215386650b94
138564528a22
144473867528
1524cad0253d
hex14cb6ec3a0

89312379808 has 24 divisors (see below), whose sum is σ = 175846204800. Its totient is φ = 44653026240.

The previous prime is 89312379803. The next prime is 89312379823. The reversal of 89312379808 is 80897321398.

It is a super-2 number, since 2×893123798082 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89312379803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 398353 + ... + 580783.

It is an arithmetic number, because the mean of its divisors is an integer number (7326925200).

Almost surely, 289312379808 is an apocalyptic number.

It is an amenable number.

89312379808 is a deficient number, since it is larger than the sum of its proper divisors (86533824992).

89312379808 is a wasteful number, since it uses less digits than its factorization.

89312379808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197740 (or 197732 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 89312379808 in words is "eighty-nine billion, three hundred twelve million, three hundred seventy-nine thousand, eight hundred eight".

Divisors: 1 2 4 8 16 32 15299 30598 61196 122392 182431 244784 364862 489568 729724 1459448 2918896 5837792 2791011869 5582023738 11164047476 22328094952 44656189904 89312379808