Search a number
-
+
53879187942 = 2327142158989
BaseRepresentation
bin110010001011011100…
…110010100111100110
312011001221012100002100
4302023130302213212
51340321033003232
640430213552530
73615114353406
oct621334624746
9164057170070
1053879187942
11209394403a8
12a538045746
1351086419c8
1428719d6806
151605203c7c
hexc8b7329e6

53879187942 has 24 divisors (see below), whose sum is σ = 118382443920. Its totient is φ = 17706774960.

The previous prime is 53879187911. The next prime is 53879187959. The reversal of 53879187942 is 24978197835.

53879187942 is a `hidden beast` number, since 5 + 387 + 91 + 87 + 94 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 53879187942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21078217 + ... + 21080772.

It is an arithmetic number, because the mean of its divisors is an integer number (4932601830).

Almost surely, 253879187942 is an apocalyptic number.

53879187942 is an abundant number, since it is smaller than the sum of its proper divisors (64503255978).

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

53879187942 is a wasteful number, since it uses less digits than its factorization.

53879187942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42159068 (or 42159065 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 53879187942 in words is "fifty-three billion, eight hundred seventy-nine million, one hundred eighty-seven thousand, nine hundred forty-two".

Divisors: 1 2 3 6 9 18 71 142 213 426 639 1278 42158989 84317978 126476967 252953934 379430901 758861802 2993288219 5986576438 8979864657 17959729314 26939593971 53879187942