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6451230512 = 241921221153
BaseRepresentation
bin1100000001000010…
…11111011100110000
3121122121010110120102
412000201133130300
5101203003334022
62544052131532
7315603361136
oct60041373460
917577113512
106451230512
112810607a71
121300606ba8
137ba70687c
14452b0b756
1527b56aa92
hex18085f730

6451230512 has 20 divisors (see below), whose sum is σ = 13157115480. Its totient is φ = 3055845888.

The previous prime is 6451230491. The next prime is 6451230521. The reversal of 6451230512 is 2150321546.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10610273 + ... + 10610880.

It is an arithmetic number, because the mean of its divisors is an integer number (657855774).

Almost surely, 26451230512 is an apocalyptic number.

It is an amenable number.

6451230512 is an abundant number, since it is smaller than the sum of its proper divisors (6705884968).

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

6451230512 is a wasteful number, since it uses less digits than its factorization.

6451230512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21221180 (or 21221174 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 6451230512 is about 80319.5524887932. The cubic root of 6451230512 is about 1861.5763520273.

The spelling of 6451230512 in words is "six billion, four hundred fifty-one million, two hundred thirty thousand, five hundred twelve".

Divisors: 1 2 4 8 16 19 38 76 152 304 21221153 42442306 84884612 169769224 339538448 403201907 806403814 1612807628 3225615256 6451230512