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297007133 = 351784449
BaseRepresentation
bin10001101100111…
…111100000011101
3202200212112012012
4101230333200131
51102013212013
645245521005
710234343003
oct2154774035
9680775165
10297007133
1114271a945
1283573165
13496c0787
142b634a73
151b11c1a8
hex11b3f81d

297007133 has 4 divisors (see below), whose sum is σ = 297095100. Its totient is φ = 296919168.

The previous prime is 297007097. The next prime is 297007163. The reversal of 297007133 is 331700792.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 159719044 + 137288089 = 12638^2 + 11717^2 .

It is a cyclic number.

It is not a de Polignac number, because 297007133 - 212 = 297003037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 297007133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (297007163) 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, 38708 + ... + 45741.

It is an arithmetic number, because the mean of its divisors is an integer number (74273775).

Almost surely, 2297007133 is an apocalyptic number.

It is an amenable number.

297007133 is a deficient number, since it is larger than the sum of its proper divisors (87967).

297007133 is an equidigital number, since it uses as much as digits as its factorization.

297007133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87966.

The product of its (nonzero) digits is 7938, while the sum is 32.

The square root of 297007133 is about 17233.8948876915. The cubic root of 297007133 is about 667.1993684243.

The spelling of 297007133 in words is "two hundred ninety-seven million, seven thousand, one hundred thirty-three".

Divisors: 1 3517 84449 297007133