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56440160 = 2557223313
BaseRepresentation
bin1101011101001…
…1010101100000
310221012110100022
43113103111200
5103422041120
65333413012
71253506400
oct327232540
9127173308
1056440160
112994a367
1216a9a168
13b90185a
1476d2800
154e4d025
hex35d3560

56440160 has 144 divisors (see below), whose sum is σ = 162370656. Its totient is φ = 18450432.

The previous prime is 56440159. The next prime is 56440193. The reversal of 56440160 is 6104465.

It is a happy number.

56440160 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180164 + ... + 180476.

It is an arithmetic number, because the mean of its divisors is an integer number (1127574).

Almost surely, 256440160 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 56440160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81185328).

56440160 is an abundant number, since it is smaller than the sum of its proper divisors (105930496).

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

56440160 is a wasteful number, since it uses less digits than its factorization.

56440160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 350 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 56440160 is about 7512.6666370870. Note that the first 4 decimals coincide. The cubic root of 56440160 is about 383.5859976774.

The spelling of 56440160 in words is "fifty-six million, four hundred forty thousand, one hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 23 28 32 35 40 46 49 56 70 80 92 98 112 115 140 160 161 184 196 224 230 245 280 313 322 368 392 460 490 560 626 644 736 784 805 920 980 1120 1127 1252 1288 1565 1568 1610 1840 1960 2191 2254 2504 2576 3130 3220 3680 3920 4382 4508 5008 5152 5635 6260 6440 7199 7840 8764 9016 10016 10955 11270 12520 12880 14398 15337 17528 18032 21910 22540 25040 25760 28796 30674 35056 35995 36064 43820 45080 50080 50393 57592 61348 70112 71990 76685 87640 90160 100786 115184 122696 143980 153370 175280 180320 201572 230368 245392 251965 287960 306740 350560 352751 403144 490784 503930 575920 613480 705502 806288 1007860 1151840 1226960 1411004 1612576 1763755 2015720 2453920 2822008 3527510 4031440 5644016 7055020 8062880 11288032 14110040 28220080 56440160