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8021130147 = 322379490499
BaseRepresentation
bin1110111100001100…
…01011101110100011
3202201000011122000100
413132012023232203
5112411402131042
63403532353443
7402525324042
oct73606135643
922630148010
108021130147
11344679a888
12167a315883
139aaa30a74
14561408559
1531e2c124c
hex1de18bba3

8021130147 has 24 divisors (see below), whose sum is σ = 12242880000. Its totient is φ = 5050167408.

The previous prime is 8021130119. The next prime is 8021130151. The reversal of 8021130147 is 7410311208.

It is not a de Polignac number, because 8021130147 - 211 = 8021128099 is a prime.

It is a super-2 number, since 2×80211301472 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8021130147.

It is not an unprimeable number, because it can be changed into a prime (8021130167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228897 + ... + 261602.

It is an arithmetic number, because the mean of its divisors is an integer number (510120000).

Almost surely, 28021130147 is an apocalyptic number.

8021130147 is a deficient number, since it is larger than the sum of its proper divisors (4221749853).

8021130147 is a wasteful number, since it uses less digits than its factorization.

8021130147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490607 (or 490604 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 8021130147 is about 89560.7623181045. The cubic root of 8021130147 is about 2001.7592975656.

The spelling of 8021130147 in words is "eight billion, twenty-one million, one hundred thirty thousand, one hundred forty-seven".

Divisors: 1 3 9 23 69 79 207 237 711 1817 5451 16353 490499 1471497 4414491 11281477 33844431 38749421 101533293 116248263 348744789 891236683 2673710049 8021130147