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53468140 = 22511475171
BaseRepresentation
bin1100101111110…
…1101111101100
310201121110111111
43023331233230
5102141440030
65150001404
71216320535
oct313755754
9121543444
1053468140
11281aa450
1215aa6264
13b100b6b
14715b68c
154a6262a
hex32fdbec

53468140 has 48 divisors (see below), whose sum is σ = 125121024. Its totient is φ = 19025600.

The previous prime is 53468131. The next prime is 53468159. The reversal of 53468140 is 4186435.

It is a happy 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, 7755 + ... + 12925.

It is an arithmetic number, because the mean of its divisors is an integer number (2606688).

Almost surely, 253468140 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 53468140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62560512).

53468140 is an abundant number, since it is smaller than the sum of its proper divisors (71652884).

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

53468140 is a wasteful number, since it uses less digits than its factorization.

53468140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5238 (or 5236 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 53468140 is about 7312.1911900606. The cubic root of 53468140 is about 376.7312895449.

The spelling of 53468140 in words is "fifty-three million, four hundred sixty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 47 55 94 110 188 220 235 470 517 940 1034 2068 2585 5170 5171 10340 10342 20684 25855 51710 56881 103420 113762 227524 243037 284405 486074 568810 972148 1137620 1215185 2430370 2673407 4860740 5346814 10693628 13367035 26734070 53468140