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8057019930 = 235268567331
BaseRepresentation
bin1111000000011110…
…00101111000011010
3202210111201000112120
413200033011320122
5113000044114210
63411253522110
7403442353011
oct74017057032
922714630476
108057019930
113464a83363
12168a343336
139b52b881b
145660aba78
15322510270
hex1e03c5e1a

8057019930 has 16 divisors (see below), whose sum is σ = 19336847904. Its totient is φ = 2148538640.

The previous prime is 8057019923. The next prime is 8057019937. The reversal of 8057019930 is 399107508.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8057019923) and next prime (8057019937).

It is not an unprimeable number, because it can be changed into a prime (8057019937) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134283636 + ... + 134283695.

It is an arithmetic number, because the mean of its divisors is an integer number (1208552994).

Almost surely, 28057019930 is an apocalyptic number.

8057019930 is an abundant number, since it is smaller than the sum of its proper divisors (11279827974).

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

8057019930 is a wasteful number, since it uses less digits than its factorization.

8057019930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268567341.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 8057019930 is about 89760.9042400978. The cubic root of 8057019930 is about 2004.7404161835.

The spelling of 8057019930 in words is "eight billion, fifty-seven million, nineteen thousand, nine hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 268567331 537134662 805701993 1342836655 1611403986 2685673310 4028509965 8057019930