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56453120 = 211537149
BaseRepresentation
bin1101011101011…
…0100000000000
310221020010010022
43113112200000
5103422444440
65333553012
71253562233
oct327264000
9127203108
1056453120
1129959079
1216aa5768
13b907719
1476d741a
154e51cb5
hex35d6800

56453120 has 96 divisors (see below), whose sum is σ = 140049000. Its totient is φ = 21823488.

The previous prime is 56453113. The next prime is 56453149. The reversal of 56453120 is 2135465.

It can be written as a sum of positive squares in 4 ways, for example, as 45589504 + 10863616 = 6752^2 + 3296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 56453120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378806 + ... + 378954.

Almost surely, 256453120 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 56453120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70024500).

56453120 is an abundant number, since it is smaller than the sum of its proper divisors (83595880).

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

56453120 is a wasteful number, since it uses less digits than its factorization.

56453120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 193 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 56453120 is about 7513.5291308412. The cubic root of 56453120 is about 383.6153555795.

Adding to 56453120 its reverse (2135465), we get a palindrome (58588585).

The spelling of 56453120 in words is "fifty-six million, four hundred fifty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 37 40 64 74 80 128 148 149 160 185 256 296 298 320 370 512 592 596 640 740 745 1024 1184 1192 1280 1480 1490 2048 2368 2384 2560 2960 2980 4736 4768 5120 5513 5920 5960 9472 9536 10240 11026 11840 11920 18944 19072 22052 23680 23840 27565 37888 38144 44104 47360 47680 55130 75776 76288 88208 94720 95360 110260 152576 176416 189440 190720 220520 305152 352832 378880 381440 441040 705664 762880 882080 1411328 1525760 1764160 2822656 3528320 5645312 7056640 11290624 14113280 28226560 56453120