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15007007 = 293116693
BaseRepresentation
bin111001001111…
…110100011111
31001020102202002
4321033310133
512320211012
61253352515
7241362131
oct71176437
931212662
1015007007
11851aa94
12503873b
1331558b2
141dc9051
1514b67c2
hexe4fd1f

15007007 has 8 divisors (see below), whose sum is σ = 16026240. Its totient is φ = 14021280.

The previous prime is 15006991. The next prime is 15007021. The reversal of 15007007 is 70070051.

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

It is a cyclic number.

It is not a de Polignac number, because 15007007 - 24 = 15006991 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15007007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15007067) 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, 7448 + ... + 9245.

It is an arithmetic number, because the mean of its divisors is an integer number (2003280).

Almost surely, 215007007 is an apocalyptic number.

15007007 is a deficient number, since it is larger than the sum of its proper divisors (1019233).

15007007 is a wasteful number, since it uses less digits than its factorization.

15007007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16753.

The product of its (nonzero) digits is 245, while the sum is 20.

The square root of 15007007 is about 3873.8878404001. The cubic root of 15007007 is about 246.6596031173.

Adding to 15007007 its reverse (70070051), we get a palindrome (85077058).

The spelling of 15007007 in words is "fifteen million, seven thousand, seven".

Divisors: 1 29 31 899 16693 484097 517483 15007007