Search a number
-
+
80176761668 = 22127402139251
BaseRepresentation
bin100101010101011101…
…0000100101101000100
321122221122201111102102
41022222322010231010
52303200222333133
6100455510131232
75535566141513
oct1125272045504
9248848644372
1080176761668
1131003767803
1213657050b18
137739943a13
143c4842c67a
152143c877e8
hex12aae84b44

80176761668 has 24 divisors (see below), whose sum is σ = 141452903424. Its totient is φ = 39761820000.

The previous prime is 80176761667. The next prime is 80176761671. The reversal of 80176761668 is 86616767108.

It is a super-2 number, since 2×801767616682 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80176761667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2023043 + ... + 2062293.

It is an arithmetic number, because the mean of its divisors is an integer number (5893870976).

Almost surely, 280176761668 is an apocalyptic number.

It is an amenable number.

80176761668 is a deficient number, since it is larger than the sum of its proper divisors (61276141756).

80176761668 is a wasteful number, since it uses less digits than its factorization.

80176761668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43403 (or 43401 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 80176761668 in words is "eighty billion, one hundred seventy-six million, seven hundred sixty-one thousand, six hundred sixty-eight".

Divisors: 1 2 4 127 254 508 4021 8042 16084 39251 78502 157004 510667 1021334 2042668 4984877 9969754 19939508 157828271 315656542 631313084 20044190417 40088380834 80176761668