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12930500 = 2253112351
BaseRepresentation
bin110001010100…
…110111000100
3220022221022102
4301110313010
511302234000
61141051232
7214623152
oct61246704
926287272
1012930500
117331970
1243b6b18
1328a96ab
141a083d2
1512063d5
hexc54dc4

12930500 has 48 divisors (see below), whose sum is σ = 30820608. Its totient is φ = 4700000.

The previous prime is 12930497. The next prime is 12930521. The reversal of 12930500 is 503921.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4325 + ... + 6675.

It is an arithmetic number, because the mean of its divisors is an integer number (642096).

Almost surely, 212930500 is an apocalyptic number.

12930500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12930500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15410304).

12930500 is an abundant number, since it is smaller than the sum of its proper divisors (17890108).

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

12930500 is a wasteful number, since it uses less digits than its factorization.

12930500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381 (or 2369 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 12930500 is about 3595.9004435607. The cubic root of 12930500 is about 234.7136999319.

The spelling of 12930500 in words is "twelve million, nine hundred thirty thousand, five hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 125 220 250 275 500 550 1100 1375 2351 2750 4702 5500 9404 11755 23510 25861 47020 51722 58775 103444 117550 129305 235100 258610 293875 517220 587750 646525 1175500 1293050 2586100 3232625 6465250 12930500