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52798495680 = 263657231149
BaseRepresentation
bin110001001011000010…
…010001101111000000
312001021121200111000000
4301023002101233000
51331112403330210
640131051000000
73546252544200
oct611302215700
9161247614000
1052798495680
11204344132a7
12a296139000
134c95791328
1427ac282400
1515903d3ac0
hexc4b091bc0

52798495680 has 1176 divisors, whose sum is σ = 227872137600. Its totient is φ = 11600547840.

The previous prime is 52798495639. The next prime is 52798495681. The reversal of 52798495680 is 8659489725.

52798495680 is a `hidden beast` number, since 5 + 27 + 9 + 8 + 49 + 568 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1176).

It is a super-2 number, since 2×527984956802 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52798495681) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 354352246 + ... + 354352394.

Almost surely, 252798495680 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 52798495680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113936068800).

52798495680 is an abundant number, since it is smaller than the sum of its proper divisors (175073641920).

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

52798495680 is a wasteful number, since it uses less digits than its factorization.

52798495680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 52798495680 in words is "fifty-two billion, seven hundred ninety-eight million, four hundred ninety-five thousand, six hundred eighty".