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15040797 = 331161729
BaseRepresentation
bin111001011000…
…000100011101
31001022011002120
4321120010131
512322301142
61254213153
7241562502
oct71300435
931264076
1015040797
118543412
1250541b9
1331680a5
141dd74a9
1514c17ec
hexe5811d

15040797 has 8 divisors (see below), whose sum is σ = 20701440. Its totient is φ = 9703680.

The previous prime is 15040789. The next prime is 15040807. The reversal of 15040797 is 79704051.

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

It is not a de Polignac number, because 15040797 - 23 = 15040789 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15040747) 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, 80772 + ... + 80957.

It is an arithmetic number, because the mean of its divisors is an integer number (2587680).

Almost surely, 215040797 is an apocalyptic number.

It is an amenable number.

15040797 is a deficient number, since it is larger than the sum of its proper divisors (5660643).

15040797 is a wasteful number, since it uses less digits than its factorization.

15040797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161763.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 15040797 is about 3878.2466399135. The cubic root of 15040797 is about 246.8445918217.

The spelling of 15040797 in words is "fifteen million, forty thousand, seven hundred ninety-seven".

Divisors: 1 3 31 93 161729 485187 5013599 15040797