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15130930 = 251513093
BaseRepresentation
bin111001101110…
…000100110010
31001110201201211
4321232010302
512333142210
61300150334
7242416333
oct71560462
931421654
1015130930
1185a5101
1250983aa
13319a119
14201c28a
1514dd38a
hexe6e132

15130930 has 8 divisors (see below), whose sum is σ = 27235692. Its totient is φ = 6052368.

The previous prime is 15130919. The next prime is 15130931. The reversal of 15130930 is 3903151.

15130930 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 2 ways, for example, as 14953689 + 177241 = 3867^2 + 421^2 .

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

It is not an unprimeable number, because it can be changed into a prime (15130931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756537 + ... + 756556.

Almost surely, 215130930 is an apocalyptic number.

15130930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15130930 is a deficient number, since it is larger than the sum of its proper divisors (12104762).

15130930 is a wasteful number, since it uses less digits than its factorization.

15130930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1513100.

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 15130930 is about 3889.8496114889. The cubic root of 15130930 is about 247.3366878277.

The spelling of 15130930 in words is "fifteen million, one hundred thirty thousand, nine hundred thirty".

Divisors: 1 2 5 10 1513093 3026186 7565465 15130930