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15000010 = 255572693
BaseRepresentation
bin111001001110…
…000111001010
31001020002010221
4321032013022
512320000020
61253300254
7241332544
oct71160712
931202127
1015000010
118515803
12503468a
13315265c
141dc6694
1514b46aa
hexe4e1ca

15000010 has 16 divisors (see below), whose sum is σ = 27058536. Its totient is φ = 5987008.

The previous prime is 14999981. The next prime is 15000017. The reversal of 15000010 is 1000051.

15000010 is digitally balanced in base 2, because in such base 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 8014561 + 6985449 = 2831^2 + 2643^2 .

It is a junction number, because it is equal to n+sod(n) for n = 14999957 and 15000002.

It is not an unprimeable number, because it can be changed into a prime (15000017) 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, 4224 + ... + 6916.

Almost surely, 215000010 is an apocalyptic number.

15000010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15000010 is a deficient number, since it is larger than the sum of its proper divisors (12058526).

15000010 is a wasteful number, since it uses less digits than its factorization.

15000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3257.

The product of its (nonzero) digits is 5, while the sum is 7.

The square root of 15000010 is about 3872.9846372017. The cubic root of 15000010 is about 246.6212622377.

Adding to 15000010 its reverse (1000051), we get a palindrome (16000061).

The spelling of 15000010 in words is "fifteen million, ten", and thus it is an aban number and an uban number.

Divisors: 1 2 5 10 557 1114 2693 2785 5386 5570 13465 26930 1500001 3000002 7500005 15000010