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52182144 = 27347719
BaseRepresentation
bin1100011100001…
…1110010000000
310122012010110000
43013003302000
5101324312034
65102240000
71202353350
oct307036200
9118163400
1052182144
1127501243
1215586000
13aa70711
146d04b60
1548ab599
hex31c3c80

52182144 has 160 divisors (see below), whose sum is σ = 177724800. Its totient is φ = 14888448.

The previous prime is 52182133. The next prime is 52182167. The reversal of 52182144 is 44128125.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 72217 + ... + 72935.

It is an arithmetic number, because the mean of its divisors is an integer number (1110780).

Almost surely, 252182144 is an apocalyptic number.

52182144 is a gapful number since it is divisible by the number (54) 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 52182144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88862400).

52182144 is an abundant number, since it is smaller than the sum of its proper divisors (125542656).

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

52182144 is an equidigital number, since it uses as much as digits as its factorization.

52182144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752 (or 731 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 52182144 is about 7223.7209248420. The cubic root of 52182144 is about 373.6864120036.

It can be divided in two parts, 52182 and 144, that added together give a triangular number (52326 = T323).

The spelling of 52182144 in words is "fifty-two million, one hundred eighty-two thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 7 8 9 12 14 16 18 21 24 27 28 32 36 42 48 54 56 63 64 72 81 84 96 108 112 126 128 144 162 168 189 192 216 224 252 288 324 336 378 384 432 448 504 567 576 648 672 719 756 864 896 1008 1134 1152 1296 1344 1438 1512 1728 2016 2157 2268 2592 2688 2876 3024 3456 4032 4314 4536 5033 5184 5752 6048 6471 8064 8628 9072 10066 10368 11504 12096 12942 15099 17256 18144 19413 20132 23008 24192 25884 30198 34512 36288 38826 40264 45297 46016 51768 58239 60396 69024 72576 77652 80528 90594 92032 103536 116478 120792 135891 138048 155304 161056 181188 207072 232956 241584 271782 276096 310608 322112 362376 407673 414144 465912 483168 543564 621216 644224 724752 815346 828288 931824 966336 1087128 1242432 1449504 1630692 1863648 1932672 2174256 2484864 2899008 3261384 3727296 4348512 5798016 6522768 7454592 8697024 13045536 17394048 26091072 52182144