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4979813540 = 22513123115559
BaseRepresentation
bin1001010001101000…
…11110110010100100
3110212001101201221112
410220310132302210
540144313013130
62142050404152
7234255500552
oct45064366244
913761351845
104979813540
112125a7a689
12b6b890658
13614911640
14353528bd2
151e22ba495
hex128d1eca4

4979813540 has 48 divisors (see below), whose sum is σ = 11271912960. Its totient is φ = 1837088640.

The previous prime is 4979813539. The next prime is 4979813543. The reversal of 4979813540 is 453189794.

It is not an unprimeable number, because it can be changed into a prime (4979813543) 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, 312281 + ... + 327839.

It is an arithmetic number, because the mean of its divisors is an integer number (234831520).

Almost surely, 24979813540 is an apocalyptic number.

It is an amenable number.

4979813540 is an abundant number, since it is smaller than the sum of its proper divisors (6292099420).

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

4979813540 is a wasteful number, since it uses less digits than its factorization.

4979813540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16812 (or 16810 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 50.

The square root of 4979813540 is about 70567.7939289588. The cubic root of 4979813540 is about 1707.6716187374.

The spelling of 4979813540 in words is "four billion, nine hundred seventy-nine million, eight hundred thirteen thousand, five hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 1231 2462 4924 6155 12310 15559 16003 24620 31118 32006 62236 64012 77795 80015 155590 160030 202267 311180 320060 404534 809068 1011335 2022670 4045340 19153129 38306258 76612516 95765645 191531290 248990677 383062580 497981354 995962708 1244953385 2489906770 4979813540