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162919371138 = 23127213804949
BaseRepresentation
bin1001011110111011000…
…0000101000110000010
3120120112010112120022220
42113232300011012002
510132124324334023
6202502155311510
714525202543216
oct2275660050602
9516463476286
10162919371138
1163103812987
12276a944b596
1312495030774
147c5752c946
154387e063e3
hex25eec05182

162919371138 has 16 divisors (see below), whose sum is σ = 328404403200. Its totient is φ = 53878846896.

The previous prime is 162919371103. The next prime is 162919371161. The reversal of 162919371138 is 831173919261.

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, 106901713 + ... + 106903236.

It is an arithmetic number, because the mean of its divisors is an integer number (20525275200).

Almost surely, 2162919371138 is an apocalyptic number.

162919371138 is an abundant number, since it is smaller than the sum of its proper divisors (165485032062).

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

162919371138 is a wasteful number, since it uses less digits than its factorization.

162919371138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213805081.

The product of its digits is 489888, while the sum is 51.

The spelling of 162919371138 in words is "one hundred sixty-two billion, nine hundred nineteen million, three hundred seventy-one thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 127 254 381 762 213804949 427609898 641414847 1282829694 27153228523 54306457046 81459685569 162919371138