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12303550405 = 527161914669
BaseRepresentation
bin10110111010101100…
…10100011111000101
31011202110022010020001
423131112110133011
5200144202103110
65352511441301
7613615311226
oct133526243705
934673263201
1012303550405
115244040583
122474526231
131211006653
1484a07724d
154c023163a
hex2dd5947c5

12303550405 has 16 divisors (see below), whose sum is σ = 14843692800. Its totient is φ = 9790009920.

The previous prime is 12303550387. The next prime is 12303550417. The reversal of 12303550405 is 50405530321.

It is not a de Polignac number, because 12303550405 - 25 = 12303550373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 831411 + ... + 846079.

It is an arithmetic number, because the mean of its divisors is an integer number (927730800).

Almost surely, 212303550405 is an apocalyptic number.

It is an amenable number.

12303550405 is a deficient number, since it is larger than the sum of its proper divisors (2540142395).

12303550405 is a wasteful number, since it uses less digits than its factorization.

12303550405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15564.

The product of its (nonzero) digits is 9000, while the sum is 28.

The spelling of 12303550405 in words is "twelve billion, three hundred three million, five hundred fifty thousand, four hundred five".

Divisors: 1 5 271 619 1355 3095 14669 73345 167749 838745 3975299 9080111 19876495 45400555 2460710081 12303550405