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1255144351 = 1966060229
BaseRepresentation
bin100101011001111…
…1111101110011111
310020110202221100211
41022303333232133
510032304104401
6324314033251
743050356656
oct11263775637
93213687324
101255144351
1159455058a
122b0418827
13170061286
14bc9a619d
15752ce951
hex4acffb9f

1255144351 has 4 divisors (see below), whose sum is σ = 1321204600. Its totient is φ = 1189084104.

The previous prime is 1255144349. The next prime is 1255144403. The reversal of 1255144351 is 1534415521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1534415521 = 1697904193.

It is a cyclic number.

It is not a de Polignac number, because 1255144351 - 21 = 1255144349 is a prime.

It is a super-2 number, since 2×12551443512 = 3150774683694422402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1255144651) 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, 33030096 + ... + 33030133.

It is an arithmetic number, because the mean of its divisors is an integer number (330301150).

Almost surely, 21255144351 is an apocalyptic number.

1255144351 is a deficient number, since it is larger than the sum of its proper divisors (66060249).

1255144351 is an equidigital number, since it uses as much as digits as its factorization.

1255144351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66060248.

The product of its digits is 12000, while the sum is 31.

The square root of 1255144351 is about 35428.0164700199. The cubic root of 1255144351 is about 1078.6930781801.

Adding to 1255144351 its reverse (1534415521), we get a palindrome (2789559872).

The spelling of 1255144351 in words is "one billion, two hundred fifty-five million, one hundred forty-four thousand, three hundred fifty-one".

Divisors: 1 19 66060229 1255144351