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168022985984 = 28793762827
BaseRepresentation
bin1001110001111011110…
…0110100110100000000
3121001200210220001201222
42130132330310310000
510223102341022414
6205104431414212
715065523546620
oct2343674646400
9531623801658
10168022985984
1165292660297
1228692684368
1312ac949a2c9
1481bd282880
154585ec868e
hex271ef34d00

168022985984 has 36 divisors (see below), whose sum is σ = 383302440864. Its totient is φ = 72009850368.

The previous prime is 168022985983. The next prime is 168022986011. The reversal of 168022985984 is 489589220861.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168022985981) 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, 46879622 + ... + 46883205.

It is an arithmetic number, because the mean of its divisors is an integer number (10647290024).

Almost surely, 2168022985984 is an apocalyptic number.

168022985984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

168022985984 is an abundant number, since it is smaller than the sum of its proper divisors (215279454880).

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

168022985984 is an frugal number, since it uses more digits than its factorization.

168022985984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93762850 (or 93762836 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 62.

The spelling of 168022985984 in words is "one hundred sixty-eight billion, twenty-two million, nine hundred eighty-five thousand, nine hundred eighty-four".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 896 1792 93762827 187525654 375051308 656339789 750102616 1312679578 1500205232 2625359156 3000410464 5250718312 6000820928 10501436624 12001641856 21002873248 24003283712 42005746496 84011492992 168022985984