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15083201 = 72154743
BaseRepresentation
bin111001100010…
…011011000001
31001101022021002
4321202123001
512330130301
61255141345
7242130230
oct71423301
931338232
1015083201
118572261
125074855
133181493
142008b17
1514ce16b
hexe626c1

15083201 has 4 divisors (see below), whose sum is σ = 17237952. Its totient is φ = 12928452.

The previous prime is 15083191. The next prime is 15083213. The reversal of 15083201 is 10238051.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10238051 = 29533467.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15083201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15083251) 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 3 ways as a sum of consecutive naturals, for example, 1077365 + ... + 1077378.

It is an arithmetic number, because the mean of its divisors is an integer number (4309488).

Almost surely, 215083201 is an apocalyptic number.

It is an amenable number.

15083201 is a deficient number, since it is larger than the sum of its proper divisors (2154751).

15083201 is an equidigital number, since it uses as much as digits as its factorization.

15083201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2154750.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 15083201 is about 3883.7096956390. The cubic root of 15083201 is about 247.0763476443.

The spelling of 15083201 in words is "fifteen million, eighty-three thousand, two hundred one".

Divisors: 1 7 2154743 15083201