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3125702101 = 7397441421
BaseRepresentation
bin1011101001001110…
…0110110111010101
322001211120010012111
42322103212313111
522400134431401
61234054351021
7140313013054
oct27223466725
98054503174
103125702101
111364417285
1273295b471
133aa756992
142191a839b
15134623e51
hexba4e6dd5

3125702101 has 8 divisors (see below), whose sum is σ = 3201192344. Its totient is φ = 3051095040.

The previous prime is 3125702087. The next prime is 3125702113. The reversal of 3125702101 is 1012075213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 642673201 + 2483028900 = 25351^2 + 49830^2 .

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 3125702101 - 27 = 3125701973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3125702171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213630 + ... + 227791.

It is an arithmetic number, because the mean of its divisors is an integer number (400149043).

Almost surely, 23125702101 is an apocalyptic number.

It is an amenable number.

3125702101 is a deficient number, since it is larger than the sum of its proper divisors (75490243).

3125702101 is an equidigital number, since it uses as much as digits as its factorization.

3125702101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 441591.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 3125702101 is about 55907.9788670633. The cubic root of 3125702101 is about 1462.1183518824.

Adding to 3125702101 its reverse (1012075213), we get a palindrome (4137777314).

The spelling of 3125702101 in words is "three billion, one hundred twenty-five million, seven hundred two thousand, one hundred one".

Divisors: 1 73 97 7081 441421 32223733 42817837 3125702101