Search a number
-
+
28610776292 = 2274124922279
BaseRepresentation
bin11010101001010101…
…011100110011100100
32201211221020000201012
4122221111130303210
5432043324320132
621051004121352
72032000404650
oct325125346344
981757200635
1028610776292
111115204576a
125665836258
13290c61a637
141555b3da60
15b26bb20b2
hex6a955cce4

28610776292 has 24 divisors (see below), whose sum is σ = 58617202560. Its totient is φ = 11962693440.

The previous prime is 28610776267. The next prime is 28610776319. The reversal of 28610776292 is 29267701682.

It is a self number, because there is not a number n which added to its sum of digits gives 28610776292.

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, 12459992 + ... + 12462287.

It is an arithmetic number, because the mean of its divisors is an integer number (2442383440).

Almost surely, 228610776292 is an apocalyptic number.

It is an amenable number.

28610776292 is an abundant number, since it is smaller than the sum of its proper divisors (30006426268).

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

28610776292 is a wasteful number, since it uses less digits than its factorization.

28610776292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24922331 (or 24922329 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 50.

The spelling of 28610776292 in words is "twenty-eight billion, six hundred ten million, seven hundred seventy-six thousand, two hundred ninety-two".

Divisors: 1 2 4 7 14 28 41 82 164 287 574 1148 24922279 49844558 99689116 174455953 348911906 697823812 1021813439 2043626878 4087253756 7152694073 14305388146 28610776292