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56179968 = 2831317331
BaseRepresentation
bin1101011001001…
…1110100000000
310220201020102120
43112103310000
5103340224333
65324044240
71251343665
oct326236400
9126636376
1056179968
1129791929
1216993680
13b8402b0
147665a6c
154deadb3
hex3593d00

56179968 has 144 divisors (see below), whose sum is σ = 171009216. Its totient is φ = 16220160.

The previous prime is 56179933. The next prime is 56180027. The reversal of 56179968 is 86997165.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 56179968.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169563 + ... + 169893.

It is an arithmetic number, because the mean of its divisors is an integer number (1187564).

Almost surely, 256179968 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 56179968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85504608).

56179968 is an abundant number, since it is smaller than the sum of its proper divisors (114829248).

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

56179968 is a wasteful number, since it uses less digits than its factorization.

56179968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 366 counting only the distinct ones).

The product of its digits is 816480, while the sum is 51.

The square root of 56179968 is about 7495.3297459151. The cubic root of 56179968 is about 382.9956392507.

The spelling of 56179968 in words is "fifty-six million, one hundred seventy-nine thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 17 24 26 32 34 39 48 51 52 64 68 78 96 102 104 128 136 156 192 204 208 221 256 272 312 331 384 408 416 442 544 624 662 663 768 816 832 884 993 1088 1248 1324 1326 1632 1664 1768 1986 2176 2496 2648 2652 3264 3328 3536 3972 4303 4352 4992 5296 5304 5627 6528 7072 7944 8606 9984 10592 10608 11254 12909 13056 14144 15888 16881 17212 21184 21216 22508 25818 28288 31776 33762 34424 42368 42432 45016 51636 56576 63552 67524 68848 73151 84736 84864 90032 103272 127104 135048 137696 146302 169728 180064 206544 219453 254208 270096 275392 292604 360128 413088 438906 540192 550784 585208 720256 826176 877812 1080384 1101568 1170416 1440512 1652352 1755624 2160768 2340832 3304704 3511248 4321536 4681664 7022496 9363328 14044992 18726656 28089984 56179968