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15125424201 = 321680602689
BaseRepresentation
bin11100001011000101…
…11010100001001001
31110001010011011100100
432011202322201021
5221434102033301
610540514200013
71043551661436
oct160542724111
943033134310
1015125424201
1164619a9088
122b21583009
131570821b64
14a36b52b8d
155d7d3c286
hex3858ba849

15125424201 has 6 divisors (see below), whose sum is σ = 21847834970. Its totient is φ = 10083616128.

The previous prime is 15125424169. The next prime is 15125424227. The reversal of 15125424201 is 10242452151.

It is a happy number.

15125424201 is a `hidden beast` number, since 15 + 1 + 25 + 424 + 201 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13764920976 + 1360503225 = 117324^2 + 36885^2 .

It is not a de Polignac number, because 15125424201 - 25 = 15125424169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15125424001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 840301336 + ... + 840301353.

Almost surely, 215125424201 is an apocalyptic number.

It is an amenable number.

15125424201 is a deficient number, since it is larger than the sum of its proper divisors (6722410769).

15125424201 is a wasteful number, since it uses less digits than its factorization.

15125424201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680602695 (or 1680602692 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 15125424201 its reverse (10242452151), we get a palindrome (25367876352).

The spelling of 15125424201 in words is "fifteen billion, one hundred twenty-five million, four hundred twenty-four thousand, two hundred one".

Divisors: 1 3 9 1680602689 5041808067 15125424201