Search a number
-
+
15980892468 = 2231578639829
BaseRepresentation
bin11101110001000100…
…10001000100110100
31112020201212110012020
432320202101010310
5230212102024333
611201433553140
71104010226142
oct167042210464
945221773166
1015980892468
116860885052
12311bb757b0
131678b260b8
14ab85da592
15637ebe3b3
hex3b8891134

15980892468 has 48 divisors (see below), whose sum is σ = 37573562880. Its totient is φ = 5286363264.

The previous prime is 15980892467. The next prime is 15980892479. The reversal of 15980892468 is 86429808951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15980892467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1620978 + ... + 1630806.

It is an arithmetic number, because the mean of its divisors is an integer number (782782560).

Almost surely, 215980892468 is an apocalyptic number.

It is an amenable number.

15980892468 is an abundant number, since it is smaller than the sum of its proper divisors (21592670412).

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

15980892468 is a wasteful number, since it uses less digits than its factorization.

15980892468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10856 (or 10854 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 60.

The spelling of 15980892468 in words is "fifteen billion, nine hundred eighty million, eight hundred ninety-two thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 12 157 314 471 628 863 942 1726 1884 2589 3452 5178 9829 10356 19658 29487 39316 58974 117948 135491 270982 406473 541964 812946 1543153 1625892 3086306 4629459 6172612 8482427 9258918 16964854 18517836 25447281 33929708 50894562 101789124 1331741039 2663482078 3995223117 5326964156 7990446234 15980892468