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8030520412 = 223904351421
BaseRepresentation
bin1110111101010100…
…00000010001011100
3202201122211201000221
413132222000101130
5112421303123122
63404505531124
7403001203645
oct73652002134
922648751027
108030520412
113451023932
1216814a3aa4
139ac96ac35
145627706cc
153200286c7
hex1dea8045c

8030520412 has 12 divisors (see below), whose sum is σ = 14054043976. Its totient is φ = 4015079280.

The previous prime is 8030520397. The next prime is 8030520419. The reversal of 8030520412 is 2140250308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8030520419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130462 + ... + 181882.

Almost surely, 28030520412 is an apocalyptic number.

It is an amenable number.

8030520412 is a deficient number, since it is larger than the sum of its proper divisors (6023523564).

8030520412 is a wasteful number, since it uses less digits than its factorization.

8030520412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90468 (or 90466 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 8030520412 is about 89613.1709739143. The cubic root of 8030520412 is about 2002.5401401449.

The spelling of 8030520412 in words is "eight billion, thirty million, five hundred twenty thousand, four hundred twelve".

Divisors: 1 2 4 39043 51421 78086 102842 156172 205684 2007630103 4015260206 8030520412