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12830856367850 = 252256617127357
BaseRepresentation
bin1011101010110110101010…
…1000101100111011101010
31200102121200102220201222222
42322231222220230323222
53140210043212232400
643142225233314042
72462666403425453
oct272555250547352
950377612821888
1012830856367850
1140a7598a13454
121532857a05922
13720c3828bb91
14325033dcc12a
15173b600ea185
hexbab6aa2ceea

12830856367850 has 12 divisors (see below), whose sum is σ = 23865392844294. Its totient is φ = 5132342547120.

The previous prime is 12830856367831. The next prime is 12830856367871. The reversal of 12830856367850 is 5876365803821.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5633317118521 + 7197539249329 = 2373461^2 + 2682823^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 128308563629 + ... + 128308563728.

Almost surely, 212830856367850 is an apocalyptic number.

12830856367850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12830856367850 is a deficient number, since it is larger than the sum of its proper divisors (11034536476444).

12830856367850 is a wasteful number, since it uses less digits than its factorization.

12830856367850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256617127369 (or 256617127364 counting only the distinct ones).

The product of its (nonzero) digits is 58060800, while the sum is 62.

The spelling of 12830856367850 in words is "twelve trillion, eight hundred thirty billion, eight hundred fifty-six million, three hundred sixty-seven thousand, eight hundred fifty".

Divisors: 1 2 5 10 25 50 256617127357 513234254714 1283085636785 2566171273570 6415428183925 12830856367850