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56290680 = 2333552121
BaseRepresentation
bin1101011010111…
…0110101111000
310220220212022000
43112232311320
5103402300210
65330301000
71252314525
oct326566570
9126825260
1056290680
1129858026
1216a27760
13b87b7c4
14769414c
154e1dac0
hex35aed78

56290680 has 64 divisors (see below), whose sum is σ = 187639200. Its totient is φ = 15010560.

The previous prime is 56290651. The next prime is 56290709. The reversal of 56290680 is 8609265.

56290680 is a `hidden beast` number, since 562 + 90 + 6 + 8 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (56290651) and next prime (56290709).

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 15 ways as a sum of consecutive naturals, for example, 24981 + ... + 27140.

Almost surely, 256290680 is an apocalyptic number.

It is an amenable number.

56290680 is an abundant number, since it is smaller than the sum of its proper divisors (131348520).

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

56290680 is a wasteful number, since it uses less digits than its factorization.

56290680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52141 (or 52131 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 56290680 is about 7502.7115098476. The cubic root of 56290680 is about 383.2470597696.

The spelling of 56290680 in words is "fifty-six million, two hundred ninety thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 216 270 360 540 1080 52121 104242 156363 208484 260605 312726 416968 469089 521210 625452 781815 938178 1042420 1250904 1407267 1563630 1876356 2084840 2345445 2814534 3127260 3752712 4690890 5629068 6254520 7036335 9381780 11258136 14072670 18763560 28145340 56290680