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12315701 = 17724453
BaseRepresentation
bin101110111110…
…110000110101
3212011200222002
4232332300311
511123100301
61115545045
7206452556
oct56766065
925150862
1012315701
116a51a72
12415b185
1327228c8
1418c832d
15113416b
hexbbec35

12315701 has 4 divisors (see below), whose sum is σ = 13040172. Its totient is φ = 11591232.

The previous prime is 12315679. The next prime is 12315707. The reversal of 12315701 is 10751321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6507601 + 5808100 = 2551^2 + 2410^2 .

It is a cyclic number.

It is not a de Polignac number, because 12315701 - 210 = 12314677 is a prime.

It is a super-2 number, since 2×123157012 = 303352982242802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12315707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362210 + ... + 362243.

It is an arithmetic number, because the mean of its divisors is an integer number (3260043).

Almost surely, 212315701 is an apocalyptic number.

It is an amenable number.

12315701 is a deficient number, since it is larger than the sum of its proper divisors (724471).

12315701 is an equidigital number, since it uses as much as digits as its factorization.

12315701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724470.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 12315701 is about 3509.3733058767. The cubic root of 12315701 is about 230.9332028275.

The spelling of 12315701 in words is "twelve million, three hundred fifteen thousand, seven hundred one".

Divisors: 1 17 724453 12315701