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52071768 = 2333734439
BaseRepresentation
bin1100011010100…
…0110101011000
310121222112001000
43012220311120
5101312244033
65100025000
71201413510
oct306506530
9117875030
1052071768
1127436321
1215532160
13aa323c8
146cb6840
154888a13
hex31a8d58

52071768 has 64 divisors (see below), whose sum is σ = 165312000. Its totient is φ = 14877216.

The previous prime is 52071751. The next prime is 52071787. The reversal of 52071768 is 86717025.

52071768 is a `hidden beast` number, since 520 + 71 + 7 + 68 = 666.

It is a super-2 number, since 2×520717682 = 5422938045291648, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15708 + ... + 18731.

It is an arithmetic number, because the mean of its divisors is an integer number (2583000).

Almost surely, 252071768 is an apocalyptic number.

It is an amenable number.

52071768 is an abundant number, since it is smaller than the sum of its proper divisors (113240232).

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

52071768 is a wasteful number, since it uses less digits than its factorization.

52071768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34461 (or 34451 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 52071768 is about 7216.0770505864. The cubic root of 52071768 is about 373.4227513990.

The spelling of 52071768 in words is "fifty-two million, seventy-one thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 7 8 9 12 14 18 21 24 27 28 36 42 54 56 63 72 84 108 126 168 189 216 252 378 504 756 1512 34439 68878 103317 137756 206634 241073 275512 309951 413268 482146 619902 723219 826536 929853 964292 1239804 1446438 1859706 1928584 2169657 2479608 2892876 3719412 4339314 5785752 6508971 7438824 8678628 13017942 17357256 26035884 52071768