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56224980 = 22325744623
BaseRepresentation
bin1101011001111…
…0110011010100
310220210112011200
43112132303110
5103343144410
65325032500
71251622140
oct326366324
9126715150
1056224980
1129812729
12169b5730
13b857926
147678220
154e093c0
hex359ecd4

56224980 has 72 divisors (see below), whose sum is σ = 194917632. Its totient is φ = 12851136.

The previous prime is 56224921. The next prime is 56224991. The reversal of 56224980 is 8942265.

It is a happy number.

56224980 is a `hidden beast` number, since 562 + 2 + 4 + 98 + 0 = 666.

It is a super-2 number, since 2×562249802 = 6322496752000800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21052 + ... + 23571.

Almost surely, 256224980 is an apocalyptic number.

It is an amenable number.

56224980 is an abundant number, since it is smaller than the sum of its proper divisors (138692652).

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

56224980 is a wasteful number, since it uses less digits than its factorization.

56224980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44645 (or 44640 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 56224980 is about 7498.3318144771. The cubic root of 56224980 is about 383.0978986992.

The spelling of 56224980 in words is "fifty-six million, two hundred twenty-four thousand, nine hundred eighty".

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 90 105 126 140 180 210 252 315 420 630 1260 44623 89246 133869 178492 223115 267738 312361 401607 446230 535476 624722 669345 803214 892460 937083 1249444 1338690 1561805 1606428 1874166 2008035 2677380 2811249 3123610 3748332 4016070 4685415 5622498 6247220 8032140 9370830 11244996 14056245 18741660 28112490 56224980