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12380000309 = 235091057487
BaseRepresentation
bin10111000011110011…
…11101000000110101
31011221210011011202222
423201321331000311
5200323240002214
65404242212125
7615534160235
oct134171750065
934853134688
1012380000309
115283207516
122496054045
131223ac2b91
14856297cc5
154c6cd338e
hex2e1e7d035

12380000309 has 8 divisors (see below), whose sum is σ = 12943653120. Its totient is φ = 11818463536.

The previous prime is 12380000291. The next prime is 12380000317. The reversal of 12380000309 is 90300008321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12380000309 - 28 = 12380000053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12380020309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 517037 + ... + 540450.

It is an arithmetic number, because the mean of its divisors is an integer number (1617956640).

Almost surely, 212380000309 is an apocalyptic number.

It is an amenable number.

12380000309 is a deficient number, since it is larger than the sum of its proper divisors (563652811).

12380000309 is a wasteful number, since it uses less digits than its factorization.

12380000309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058019.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 12380000309 in words is "twelve billion, three hundred eighty million, three hundred nine", and thus it is an aban number.

Divisors: 1 23 509 11707 1057487 24322201 538260883 12380000309