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3138297 = 31278237
BaseRepresentation
bin1011111110001011111001
312220102221020
423332023321
51300411142
6151133053
735450361
oct13761371
95812836
103138297
111853938
121074189
1385b5a6
145b99a1
1541ecec
hex2fe2f9

3138297 has 8 divisors (see below), whose sum is σ = 4217856. Its totient is φ = 2075472.

The previous prime is 3138283. The next prime is 3138299. The reversal of 3138297 is 7928313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3138297 - 28 = 3138041 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3138299) 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, 3738 + ... + 4499.

It is an arithmetic number, because the mean of its divisors is an integer number (527232).

Almost surely, 23138297 is an apocalyptic number.

It is an amenable number.

3138297 is a deficient number, since it is larger than the sum of its proper divisors (1079559).

3138297 is a wasteful number, since it uses less digits than its factorization.

3138297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367.

The product of its digits is 9072, while the sum is 33.

The square root of 3138297 is about 1771.5239202449. The cubic root of 3138297 is about 146.4079570312.

The spelling of 3138297 in words is "three million, one hundred thirty-eight thousand, two hundred ninety-seven".

Divisors: 1 3 127 381 8237 24711 1046099 3138297