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56748120 = 233511133307
BaseRepresentation
bin1101100001111…
…0100001011000
310221210002210020
43120132201120
5104011414440
65344150440
71256231262
oct330364130
9127702706
1056748120
112a03a780
1217008420
13b9aba90
147772b32
154eae3d0
hex361e858

56748120 has 128 divisors (see below), whose sum is σ = 200067840. Its totient is φ = 12695040.

The previous prime is 56748119. The next prime is 56748137. The reversal of 56748120 is 2184765.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15507 + ... + 18813.

It is an arithmetic number, because the mean of its divisors is an integer number (1563030).

Almost surely, 256748120 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 56748120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100033920).

56748120 is an abundant number, since it is smaller than the sum of its proper divisors (143319720).

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

56748120 is a wasteful number, since it uses less digits than its factorization.

56748120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345 (or 3341 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 56748120 is about 7533.1348056437. The cubic root of 56748120 is about 384.2823986063.

The spelling of 56748120 in words is "fifty-six million, seven hundred forty-eight thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 11 12 13 15 20 22 24 26 30 33 39 40 44 52 55 60 65 66 78 88 104 110 120 130 132 143 156 165 195 220 260 264 286 312 330 390 429 440 520 572 660 715 780 858 1144 1320 1430 1560 1716 2145 2860 3307 3432 4290 5720 6614 8580 9921 13228 16535 17160 19842 26456 33070 36377 39684 42991 49605 66140 72754 79368 85982 99210 109131 128973 132280 145508 171964 181885 198420 214955 218262 257946 291016 343928 363770 396840 429910 436524 472901 515892 545655 644865 727540 859820 873048 945802 1031784 1091310 1289730 1418703 1455080 1719640 1891604 2182620 2364505 2579460 2837406 3783208 4365240 4729010 5158920 5674812 7093515 9458020 11349624 14187030 18916040 28374060 56748120