Search a number
-
+
16379899488 = 253318958217
BaseRepresentation
bin11110100000101000…
…10110111001100000
31120021112200002221000
433100110112321200
5232021223240423
611305210032000
71116623564001
oct172024267140
946245602830
1016379899488
116a46031a17
123211718600
1317106aa724
14b155c31a8
1565d038843
hex3d0516e60

16379899488 has 48 divisors (see below), whose sum is σ = 47774709360. Its totient is φ = 5459966208.

The previous prime is 16379899477. The next prime is 16379899513. The reversal of 16379899488 is 88499897361.

16379899488 is a `hidden beast` number, since 1 + 63 + 7 + 9 + 89 + 9 + 488 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×163798994882 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

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, 9478245 + ... + 9479972.

It is an arithmetic number, because the mean of its divisors is an integer number (995306445).

Almost surely, 216379899488 is an apocalyptic number.

16379899488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

16379899488 is an abundant number, since it is smaller than the sum of its proper divisors (31394809872).

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

16379899488 is a wasteful number, since it uses less digits than its factorization.

16379899488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18958236 (or 18958222 counting only the distinct ones).

The product of its digits is 188116992, while the sum is 72.

The spelling of 16379899488 in words is "sixteen billion, three hundred seventy-nine million, eight hundred ninety-nine thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 18958217 37916434 56874651 75832868 113749302 151665736 170623953 227498604 303331472 341247906 454997208 511871859 606662944 682495812 909994416 1023743718 1364991624 1819988832 2047487436 2729983248 4094974872 5459966496 8189949744 16379899488