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13020297 = 35973561
BaseRepresentation
bin110001101010…
…110010001001
3220111111111020
4301222302021
511313122142
61143023053
7215446023
oct61526211
926444436
1013020297
117393384
12443aa89
13290b524
141a2d013
151222cec
hexc6ac89

13020297 has 8 divisors (see below), whose sum is σ = 17654880. Its totient is φ = 8532960.

The previous prime is 13020251. The next prime is 13020307. The reversal of 13020297 is 79202031.

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

It is not a de Polignac number, because 13020297 - 26 = 13020233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13020197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36604 + ... + 36957.

It is an arithmetic number, because the mean of its divisors is an integer number (2206860).

Almost surely, 213020297 is an apocalyptic number.

It is an amenable number.

13020297 is a deficient number, since it is larger than the sum of its proper divisors (4634583).

13020297 is an equidigital number, since it uses as much as digits as its factorization.

13020297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73623.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 13020297 is about 3608.3648651432. The cubic root of 13020297 is about 235.2557770384.

The spelling of 13020297 in words is "thirteen million, twenty thousand, two hundred ninety-seven".

Divisors: 1 3 59 177 73561 220683 4340099 13020297