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4851389920 = 255132332399
BaseRepresentation
bin1001000010010101…
…00101010111100000
3110112002202010212011
410201022211113200
534413423434140
62121222042304
7231136063636
oct44112452740
913462663764
104851389920
11206a535063
12b34879394
135c4128530
14340459356
151d5d9dcea
hex1212a55e0

4851389920 has 48 divisors (see below), whose sum is σ = 12343060800. Its totient is φ = 1791281664.

The previous prime is 4851389899. The next prime is 4851389953. The reversal of 4851389920 is 299831584.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1164120 + ... + 1168279.

It is an arithmetic number, because the mean of its divisors is an integer number (257147100).

Almost surely, 24851389920 is an apocalyptic number.

4851389920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4851389920 is an abundant number, since it is smaller than the sum of its proper divisors (7491670880).

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

4851389920 is a wasteful number, since it uses less digits than its factorization.

4851389920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2332427 (or 2332419 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 4851389920 is about 69651.9197151091. The cubic root of 4851389920 is about 1692.8639649490.

The spelling of 4851389920 in words is "four billion, eight hundred fifty-one million, three hundred eighty-nine thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 2332399 4664798 9329596 11661995 18659192 23323990 30321187 37318384 46647980 60642374 74636768 93295960 121284748 151605935 186591920 242569496 303211870 373183840 485138992 606423740 970277984 1212847480 2425694960 4851389920