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3331331297 = 72293763361
BaseRepresentation
bin1100011010010000…
…0001010011100001
322121011111011102122
43012210001103201
523310310100142
61310321554025
7145360564100
oct30644012341
98534434378
103331331297
11145a4a4568
1278b7a5915
13411232268
14238614037
151476e11d2
hexc69014e1

3331331297 has 24 divisors (see below), whose sum is σ = 4117262760. Its totient is φ = 2682408960.

The previous prime is 3331331287. The next prime is 3331331309. The reversal of 3331331297 is 7921331333.

It can be written as a sum of positive squares in 4 ways, for example, as 1113957376 + 2217373921 = 33376^2 + 47089^2 .

It is not a de Polignac number, because 3331331297 - 24 = 3331331281 is a prime.

It is a super-2 number, since 2×33313312972 = 22195536420743404418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3331331287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20897 + ... + 84257.

It is an arithmetic number, because the mean of its divisors is an integer number (171552615).

Almost surely, 23331331297 is an apocalyptic number.

3331331297 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

3331331297 is a deficient number, since it is larger than the sum of its proper divisors (785931463).

3331331297 is a wasteful number, since it uses less digits than its factorization.

3331331297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63441 (or 63434 counting only the distinct ones).

The product of its digits is 30618, while the sum is 35.

The square root of 3331331297 is about 57717.6861715714. The cubic root of 3331331297 is about 1493.5024577877.

The spelling of 3331331297 in words is "three billion, three hundred thirty-one million, three hundred thirty-one thousand, two hundred ninety-seven".

Divisors: 1 7 29 37 49 203 259 1073 1421 1813 7511 52577 63361 443527 1837469 2344357 3104689 12862283 16410499 67986353 90035981 114873493 475904471 3331331297