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1255350124321 = 15671251164033
BaseRepresentation
bin10010010001001000101…
…100101011111100100001
311110000021111201202102221
4102101020230223330201
5131031424112434241
62400411101511041
7156460513665616
oct22211054537441
94400244652387
101255350124321
11444433466797
12183366272481
13914c08b3c67
1444a8b61a50d
15229c40e75d1
hex12448b2bf21

1255350124321 has 8 divisors (see below), whose sum is σ = 1256271263744. Its totient is φ = 1254429141120.

The previous prime is 1255350124297. The next prime is 1255350124333. The reversal of 1255350124321 is 1234210535521.

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 1255350124321 - 25 = 1255350124289 is a prime.

It is a super-2 number, since 2×12553501243212 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255350124381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19572721 + ... + 19636753.

It is an arithmetic number, because the mean of its divisors is an integer number (157033907968).

Almost surely, 21255350124321 is an apocalyptic number.

It is an amenable number.

1255350124321 is a deficient number, since it is larger than the sum of its proper divisors (921139423).

1255350124321 is a wasteful number, since it uses less digits than its factorization.

1255350124321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78111.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 1255350124321 its reverse (1234210535521), we get a palindrome (2489560659842).

The spelling of 1255350124321 in words is "one trillion, two hundred fifty-five billion, three hundred fifty million, one hundred twenty-four thousand, three hundred twenty-one".

Divisors: 1 1567 12511 64033 19604737 100339711 801116863 1255350124321