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3125008020 = 2235260919963
BaseRepresentation
bin1011101001000011…
…1101011010010100
322001210020212002210
42322100331122110
522400000224040
61234031433420
7140304062361
oct27220753224
98053225083
103125008020
111363a92862
12732685870
133aa572a94
14219067468
15134538480
hexba43d694

3125008020 has 48 divisors (see below), whose sum is σ = 8753814720. Its totient is φ = 832974336.

The previous prime is 3125007997. The next prime is 3125008039. The reversal of 3125008020 is 208005213.

3125008020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 146559 + ... + 166521.

It is an arithmetic number, because the mean of its divisors is an integer number (182371140).

Almost surely, 23125008020 is an apocalyptic number.

3125008020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3125008020 is an abundant number, since it is smaller than the sum of its proper divisors (5628806700).

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

3125008020 is a wasteful number, since it uses less digits than its factorization.

3125008020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22584 (or 22582 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 3125008020 is about 55901.7711705094. The cubic root of 3125008020 is about 1462.0101198052.

The spelling of 3125008020 in words is "three billion, one hundred twenty-five million, eight thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 2609 5218 7827 10436 13045 15654 19963 26090 31308 39135 39926 52180 59889 78270 79852 99815 119778 156540 199630 239556 299445 399260 598890 1197780 52083467 104166934 156250401 208333868 260417335 312500802 520834670 625001604 781252005 1041669340 1562504010 3125008020