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53168752 = 247132532
BaseRepresentation
bin1100101011010…
…0101001110000
310201001020211001
43022310221300
5102102400002
65135331344
71213632640
oct312645160
9121036731
1053168752
112801551a
1215980b54
13b027800
1470c0520
154a03a87
hex32b4a70

53168752 has 90 divisors (see below), whose sum is σ = 129934392. Its totient is φ = 20636928.

The previous prime is 53168743. The next prime is 53168767. The reversal of 53168752 is 25786135.

Its product of digits (50400) is a multiple of the sum of its prime divisors (75).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1003158 + ... + 1003210.

Almost surely, 253168752 is an apocalyptic number.

53168752 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53168752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64967196).

53168752 is an abundant number, since it is smaller than the sum of its proper divisors (76765640).

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

53168752 is a wasteful number, since it uses less digits than its factorization.

53168752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 75 counting only the distinct ones).

The product of its digits is 50400, while the sum is 37.

The square root of 53168752 is about 7291.6906132940. The cubic root of 53168752 is about 376.0268201783.

The spelling of 53168752 in words is "fifty-three million, one hundred sixty-eight thousand, seven hundred fifty-two".

Divisors: 1 2 4 7 8 13 14 16 26 28 52 53 56 91 104 106 112 169 182 208 212 338 364 371 424 676 689 728 742 848 1183 1352 1378 1456 1484 2366 2704 2756 2809 2968 4732 4823 5512 5618 5936 8957 9464 9646 11024 11236 17914 18928 19292 19663 22472 35828 36517 38584 39326 44944 62699 71656 73034 77168 78652 125398 143312 146068 157304 250796 255619 292136 314608 474721 501592 511238 584272 949442 1003184 1022476 1898884 2044952 3323047 3797768 4089904 6646094 7595536 13292188 26584376 53168752