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4978579872 = 253729255469
BaseRepresentation
bin1001010001011111…
…10001100110100000
3110211222002001200010
410220233301212200
540144004023442
62142004124520
7234242142060
oct45057614640
913758061603
104978579872
112125307822
12b6b396740
1361459bc66
143532c73a0
151e2124b9c
hex128bf19a0

4978579872 has 96 divisors (see below), whose sum is σ = 15450825600. Its totient is φ = 1373395968.

The previous prime is 4978579871. The next prime is 4978579873. The reversal of 4978579872 is 2789758794.

It is an interprime number because it is at equal distance from previous prime (4978579871) and next prime (4978579873).

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (4978579871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108247 + ... + 147222.

It is an arithmetic number, because the mean of its divisors is an integer number (160946100).

Almost surely, 24978579872 is an apocalyptic number.

4978579872 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

4978579872 is an abundant number, since it is smaller than the sum of its proper divisors (10472245728).

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

4978579872 is a wasteful number, since it uses less digits than its factorization.

4978579872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255518 (or 255510 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 66.

The square root of 4978579872 is about 70559.0523745890. The cubic root of 4978579872 is about 1707.5305911129.

The spelling of 4978579872 in words is "four billion, nine hundred seventy-eight million, five hundred seventy-nine thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 29 32 42 48 56 58 84 87 96 112 116 168 174 203 224 232 336 348 406 464 609 672 696 812 928 1218 1392 1624 2436 2784 3248 4872 6496 9744 19488 255469 510938 766407 1021876 1532814 1788283 2043752 3065628 3576566 4087504 5364849 6131256 7153132 7408601 8175008 10729698 12262512 14306264 14817202 21459396 22225803 24525024 28612528 29634404 42918792 44451606 51860207 57225056 59268808 85837584 88903212 103720414 118537616 155580621 171675168 177806424 207440828 237075232 311161242 355612848 414881656 622322484 711225696 829763312 1244644968 1659526624 2489289936 4978579872