Search a number
-
+
28536468792 = 2331391463041
BaseRepresentation
bin11010100100111001…
…111111010100111000
32201122202101210222120
4122210321333110320
5431420314000132
621035351321240
72030105661006
oct324471772470
981582353876
1028536468792
1111114102407
125644980220
1328ca1012c0
141549d19a76
15b203d502c
hex6a4e7f538

28536468792 has 32 divisors (see below), whose sum is σ = 76828955280. Its totient is φ = 8780451840.

The previous prime is 28536468757. The next prime is 28536468799. The reversal of 28536468792 is 29786463582.

It is a super-2 number, since 2×285364687922 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28536468799) 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, 45731209 + ... + 45731832.

Almost surely, 228536468792 is an apocalyptic number.

It is an amenable number.

28536468792 is an abundant number, since it is smaller than the sum of its proper divisors (48292486488).

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

28536468792 is a wasteful number, since it uses less digits than its factorization.

28536468792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91463063 (or 91463059 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 60.

The spelling of 28536468792 in words is "twenty-eight billion, five hundred thirty-six million, four hundred sixty-eight thousand, seven hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 91463041 182926082 274389123 365852164 548778246 731704328 1097556492 1189019533 2195112984 2378039066 3567058599 4756078132 7134117198 9512156264 14268234396 28536468792