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52740064152 = 233231199118739
BaseRepresentation
bin110001000111100011…
…011000001110011000
312001010112201212000100
4301013203120032120
51331002424023102
640121202335400
73544643101656
oct610743301630
9161115655010
1052740064152
1120404433886
12a27a65a560
134c86643269
1427a45d1dd6
15158a1e0a1c
hexc478d8398

52740064152 has 96 divisors (see below), whose sum is σ = 148187520000. Its totient is φ = 16927289280.

The previous prime is 52740064099. The next prime is 52740064159. The reversal of 52740064152 is 25146004725.

It is a happy number.

52740064152 is a `hidden beast` number, since 5 + 2 + 7 + 4 + 0 + 0 + 641 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52740064159) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 384799 + ... + 503537.

It is an arithmetic number, because the mean of its divisors is an integer number (1543620000).

Almost surely, 252740064152 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 52740064152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74093760000).

52740064152 is an abundant number, since it is smaller than the sum of its proper divisors (95447455848).

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

52740064152 is a wasteful number, since it uses less digits than its factorization.

52740064152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118981 (or 118974 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

Adding to 52740064152 its reverse (25146004725), we get a palindrome (77886068877).

The spelling of 52740064152 in words is "fifty-two billion, seven hundred forty million, sixty-four thousand, one hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 31 36 62 72 93 124 186 199 248 279 372 398 558 597 744 796 1116 1194 1592 1791 2232 2388 3582 4776 6169 7164 12338 14328 18507 24676 37014 49352 55521 74028 111042 118739 148056 222084 237478 356217 444168 474956 712434 949912 1068651 1424868 2137302 2849736 3680909 4274604 7361818 8549208 11042727 14723636 22085454 23629061 29447272 33128181 44170908 47258122 66256362 70887183 88341816 94516244 132512724 141774366 189032488 212661549 265025448 283548732 425323098 567097464 732500891 850646196 1465001782 1701292392 2197502673 2930003564 4395005346 5860007128 6592508019 8790010692 13185016038 17580021384 26370032076 52740064152