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3125112251 = 28859108289
BaseRepresentation
bin1011101001000101…
…0110110110111011
322001210110011002012
42322101112312323
522400012043001
61234034000135
7140305005302
oct27221266673
98053404065
103125112251
1113640540a8
1273271604b
133aa5ab361
14219093439
151345592bb
hexba456dbb

3125112251 has 4 divisors (see below), whose sum is σ = 3125249400. Its totient is φ = 3124975104.

The previous prime is 3125112233. The next prime is 3125112253. The reversal of 3125112251 is 1522115213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3125112251 - 214 = 3125095867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3125112253) 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 3 ways as a sum of consecutive naturals, for example, 25286 + ... + 83003.

It is an arithmetic number, because the mean of its divisors is an integer number (781312350).

Almost surely, 23125112251 is an apocalyptic number.

3125112251 is a deficient number, since it is larger than the sum of its proper divisors (137149).

3125112251 is a wasteful number, since it uses less digits than its factorization.

3125112251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137148.

The product of its digits is 600, while the sum is 23.

The square root of 3125112251 is about 55902.7034319450. The cubic root of 3125112251 is about 1462.0263741723.

Adding to 3125112251 its reverse (1522115213), we get a palindrome (4647227464).

The spelling of 3125112251 in words is "three billion, one hundred twenty-five million, one hundred twelve thousand, two hundred fifty-one".

Divisors: 1 28859 108289 3125112251