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12251147320 = 235487628909
BaseRepresentation
bin10110110100011100…
…11010110000111000
31011121210200202201001
423122032122300320
5200042243203240
65343400334344
7612411014446
oct133216326070
934553622631
1012251147320
1152174a9345
12245aa743b4
1312031b94c9
14843115b96
154ba82e89a
hex2da39ac38

12251147320 has 32 divisors (see below), whose sum is σ = 27621727200. Its totient is φ = 4890388608.

The previous prime is 12251147303. The next prime is 12251147339. The reversal of 12251147320 is 2374115221.

12251147320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×122511473202 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294975 + ... + 333934.

It is an arithmetic number, because the mean of its divisors is an integer number (863178975).

Almost surely, 212251147320 is an apocalyptic number.

12251147320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12251147320 is an abundant number, since it is smaller than the sum of its proper divisors (15370579880).

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

12251147320 is a wasteful number, since it uses less digits than its factorization.

12251147320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629407 (or 629403 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 12251147320 in words is "twelve billion, two hundred fifty-one million, one hundred forty-seven thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 487 974 1948 2435 3896 4870 9740 19480 628909 1257818 2515636 3144545 5031272 6289090 12578180 25156360 306278683 612557366 1225114732 1531393415 2450229464 3062786830 6125573660 12251147320