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8130030912 = 26341568293
BaseRepresentation
bin1111001001001011…
…00110110101000000
3202222121002100210000
413210211212311000
5113122241442122
63422422440000
7405320060013
oct74445466500
922877070700
108130030912
1134a2210613
1216aa893000
139c746c9a3
14571a7537a
15328b330ac
hex1e4966d40

8130030912 has 70 divisors (see below), whose sum is σ = 24099973898. Its totient is φ = 2710008576.

The previous prime is 8130030899. The next prime is 8130030919. The reversal of 8130030912 is 2190300318.

It can be written as a sum of positive squares in only one way, i.e., 4454761536 + 3675269376 = 66744^2 + 60624^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8130030919) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 778963 + ... + 789330.

Almost surely, 28130030912 is an apocalyptic number.

It is an amenable number.

8130030912 is an abundant number, since it is smaller than the sum of its proper divisors (15969942986).

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

8130030912 is a wasteful number, since it uses less digits than its factorization.

8130030912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568317 (or 1568298 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 8130030912 is about 90166.6840468252. The cubic root of 8130030912 is about 2010.7777253239. Note that the first 4 decimals are identical.

The spelling of 8130030912 in words is "eight billion, one hundred thirty million, thirty thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 144 162 192 216 288 324 432 576 648 864 1296 1728 2592 5184 1568293 3136586 4704879 6273172 9409758 12546344 14114637 18819516 25092688 28229274 37639032 42343911 50185376 56458548 75278064 84687822 100370752 112917096 127031733 150556128 169375644 225834192 254063466 301112256 338751288 451668384 508126932 677502576 903336768 1016253864 1355005152 2032507728 2710010304 4065015456 8130030912