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1121300297 = 13217390289
BaseRepresentation
bin100001011010101…
…1010111101001001
32220010220221211122
41002311122331021
54244023102142
6303133205025
736533616035
oct10265327511
92803827748
101121300297
11525a43567
12273630775
1314b3cac00
14a8cc51c5
15686921d2
hex42d5af49

1121300297 has 12 divisors (see below), whose sum is σ = 1285615260. Its totient is φ = 974158848.

The previous prime is 1121300273. The next prime is 1121300317. The reversal of 1121300297 is 7920031211.

It can be written as a sum of positive squares in 6 ways, for example, as 271227961 + 850072336 = 16469^2 + 29156^2 .

It is not a de Polignac number, because 1121300297 - 28 = 1121300041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121300497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192272 + ... + 198017.

It is an arithmetic number, because the mean of its divisors is an integer number (107134605).

Almost surely, 21121300297 is an apocalyptic number.

1121300297 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1121300297 is a deficient number, since it is larger than the sum of its proper divisors (164314963).

1121300297 is a wasteful number, since it uses less digits than its factorization.

1121300297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390332 (or 390319 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1121300297 is about 33485.8223282630. The cubic root of 1121300297 is about 1038.9005568757.

The spelling of 1121300297 in words is "one billion, one hundred twenty-one million, three hundred thousand, two hundred ninety-seven".

Divisors: 1 13 17 169 221 2873 390289 5073757 6634913 65958841 86253869 1121300297