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728107830468 = 223315534341107
BaseRepresentation
bin10101001100001101001…
…10111100110011000100
32120121101002100010111000
422212012212330303010
543412131101033333
61314253233413300
7103414122305064
oct12460646746304
92517332303430
10728107830468
11260874985757
12b9141a0a230
13538778106a5
14273523233a4
1513e16a1d713
hexa9869bccc4

728107830468 has 48 divisors (see below), whose sum is σ = 1888902912960. Its totient is φ = 242546274432.

The previous prime is 728107830433. The next prime is 728107830547. The reversal of 728107830468 is 864038701827.

It is a happy number.

728107830468 is a `hidden beast` number, since 7 + 2 + 81 + 0 + 78 + 30 + 468 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2002830 + ... + 2338277.

It is an arithmetic number, because the mean of its divisors is an integer number (39352144020).

Almost surely, 2728107830468 is an apocalyptic number.

It is an amenable number.

728107830468 is an abundant number, since it is smaller than the sum of its proper divisors (1160795082492).

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

728107830468 is a wasteful number, since it uses less digits than its factorization.

728107830468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4342673 (or 4342665 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 728107830468 in words is "seven hundred twenty-eight billion, one hundred seven million, eight hundred thirty thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 1553 3106 4659 6212 9318 13977 18636 27954 41931 55908 83862 167724 4341107 8682214 13023321 17364428 26046642 39069963 52093284 78139926 117209889 156279852 234419778 468839556 6741739171 13483478342 20225217513 26966956684 40450435026 60675652539 80900870052 121351305078 182026957617 242702610156 364053915234 728107830468