Search a number
-
+
90766472015 = 5157115626079
BaseRepresentation
bin101010010001000011…
…0100111001101001111
322200021200010112001202
41110202012213031033
52441342204101030
6105410400300115
76362164165562
oct1244206471517
9280250115052
1090766472015
113554834193a
121571161163b
13873686640b
144570a1a4d9
1525637ce745
hex15221a734f

90766472015 has 8 divisors (see below), whose sum is σ = 109613523840. Its totient is φ = 72150672672.

The previous prime is 90766471987. The next prime is 90766472023. The reversal of 90766472015 is 51027466709.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90766472015 - 26 = 90766471951 is a prime.

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, 57812255 + ... + 57813824.

It is an arithmetic number, because the mean of its divisors is an integer number (13701690480).

Almost surely, 290766472015 is an apocalyptic number.

90766472015 is a deficient number, since it is larger than the sum of its proper divisors (18847051825).

90766472015 is a wasteful number, since it uses less digits than its factorization.

90766472015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115626241.

The product of its (nonzero) digits is 635040, while the sum is 47.

The spelling of 90766472015 in words is "ninety billion, seven hundred sixty-six million, four hundred seventy-two thousand, fifteen".

Divisors: 1 5 157 785 115626079 578130395 18153294403 90766472015