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12303251405 = 515551158231
BaseRepresentation
bin10110111010101010…
…01011011111001101
31011202102201221001222
423131111023133031
5200144113021110
65352501213125
7613612624424
oct133525133715
934672657058
1012303251405
115243956975
1224744011a5
131210c30523
14849dda2bb
154c01c2c55
hex2dd54b7cd

12303251405 has 8 divisors (see below), whose sum is σ = 14764944384. Its totient is φ = 9841906000.

The previous prime is 12303251381. The next prime is 12303251417. The reversal of 12303251405 is 50415230321.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2k-12303251405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1361 + ... + 156870.

It is an arithmetic number, because the mean of its divisors is an integer number (1845618048).

Almost surely, 212303251405 is an apocalyptic number.

It is an amenable number.

12303251405 is a deficient number, since it is larger than the sum of its proper divisors (2461692979).

12303251405 is a wasteful number, since it uses less digits than its factorization.

12303251405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173787.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 12303251405 its reverse (50415230321), we get a palindrome (62718481726).

The spelling of 12303251405 in words is "twelve billion, three hundred three million, two hundred fifty-one thousand, four hundred five".

Divisors: 1 5 15551 77755 158231 791155 2460650281 12303251405