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52754940 = 223257149281
BaseRepresentation
bin1100100100111…
…1100111111100
310200021020011200
43021033213330
5102001124230
65122415500
71210260330
oct311174774
9120236150
1052754940
1127862627
1215801590
13ac11354
1470137c0
154971160
hex324f9fc

52754940 has 144 divisors (see below), whose sum is σ = 184766400. Its totient is φ = 11934720.

The previous prime is 52754899. The next prime is 52754951. The reversal of 52754940 is 4945725.

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

It is a junction number, because it is equal to n+sod(n) for n = 52754895 and 52754904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 187600 + ... + 187880.

It is an arithmetic number, because the mean of its divisors is an integer number (1283100).

Almost surely, 252754940 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 52754940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92383200).

52754940 is an abundant number, since it is smaller than the sum of its proper divisors (132011460).

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

52754940 is a wasteful number, since it uses less digits than its factorization.

52754940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 52754940 is about 7263.2595988303. The cubic root of 52754940 is about 375.0487403314.

The spelling of 52754940 in words is "fifty-two million, seven hundred fifty-four thousand, nine hundred forty".

Divisors: 1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 28 30 35 36 42 45 60 63 70 84 90 105 126 140 149 180 210 252 281 298 315 420 447 562 596 630 745 843 894 1043 1124 1260 1341 1405 1490 1686 1788 1967 2086 2235 2529 2682 2810 2980 3129 3372 3934 4172 4215 4470 5058 5215 5364 5620 5901 6258 6705 7868 8430 8940 9387 9835 10116 10430 11802 12516 12645 13410 15645 16860 17703 18774 19670 20860 23604 25290 26820 29505 31290 35406 37548 39340 41869 46935 50580 59010 62580 70812 83738 88515 93870 118020 125607 167476 177030 187740 209345 251214 293083 354060 376821 418690 502428 586166 628035 753642 837380 879249 1172332 1256070 1465415 1507284 1758498 1884105 2512140 2637747 2930830 3516996 3768210 4396245 5275494 5861660 7536420 8792490 10550988 13188735 17584980 26377470 52754940