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12949597 = 17977853
BaseRepresentation
bin110001011001…
…100001011101
3220100220111201
4301121201131
511303341342
61141315501
7215032633
oct61314135
926326451
1012949597
117345251
124405b91
1328b52ab
141a11353
15120bdb7
hexc5985d

12949597 has 8 divisors (see below), whose sum is σ = 13854456. Its totient is φ = 12060672.

The previous prime is 12949571. The next prime is 12949603. The reversal of 12949597 is 79594921.

It is a happy number.

12949597 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 481636 + 12467961 = 694^2 + 3531^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12949597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12949997) 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, 2278 + ... + 5575.

It is an arithmetic number, because the mean of its divisors is an integer number (1731807).

Almost surely, 212949597 is an apocalyptic number.

12949597 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12949597 is a deficient number, since it is larger than the sum of its proper divisors (904859).

12949597 is an equidigital number, since it uses as much as digits as its factorization.

12949597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7967.

The product of its digits is 204120, while the sum is 46.

The square root of 12949597 is about 3598.5548488247. The cubic root of 12949597 is about 234.8291923128.

The spelling of 12949597 in words is "twelve million, nine hundred forty-nine thousand, five hundred ninety-seven".

Divisors: 1 17 97 1649 7853 133501 761741 12949597