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53215104124 = 22713439333019
BaseRepresentation
bin110001100011110111…
…100000110001111100
312002100122121101100101
4301203313200301330
51332441031312444
640240252210444
73562501631110
oct614367406174
9162318541311
1053215104124
11206285a23a6
12a391769a24
135030b993c0
14280b72b740
1515b6c783d4
hexc63de0c7c

53215104124 has 48 divisors (see below), whose sum is σ = 114878579200. Its totient is φ = 21004111296.

The previous prime is 53215104113. The next prime is 53215104143. The reversal of 53215104124 is 42140151235.

It is a super-4 number, since 4×532151041244 (a number of 44 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 53215104092 and 53215104101.

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 15 ways as a sum of consecutive naturals, for example, 6714 + ... + 326305.

Almost surely, 253215104124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53215104124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57439289600).

53215104124 is an abundant number, since it is smaller than the sum of its proper divisors (61663475076).

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

53215104124 is a wasteful number, since it uses less digits than its factorization.

53215104124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333482 (or 333480 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 53215104124 its reverse (42140151235), we get a palindrome (95355255359).

The spelling of 53215104124 in words is "fifty-three billion, two hundred fifteen million, one hundred four thousand, one hundred twenty-four".

Divisors: 1 2 4 7 13 14 26 28 52 91 182 364 439 878 1756 3073 5707 6146 11414 12292 22828 39949 79898 159796 333019 666038 1332076 2331133 4329247 4662266 8658494 9324532 17316988 30304729 60609458 121218916 146195341 292390682 584781364 1023367387 1900539433 2046734774 3801078866 4093469548 7602157732 13303776031 26607552062 53215104124