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69475031 is a prime number
BaseRepresentation
bin1000010010000…
…01101011010111
311211201200211022
410021001223113
5120241200111
610521031355
71502346053
oct411015327
9154650738
1069475031
113624268a
121b32555b
13115168b2
149326c63
1561752db
hex4241ad7

69475031 has 2 divisors, whose sum is σ = 69475032. Its totient is φ = 69475030.

The previous prime is 69475013. The next prime is 69475069. The reversal of 69475031 is 13057496.

Together with previous prime (69475013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 69475031 - 214 = 69458647 is a prime.

It is a super-2 number, since 2×694750312 = 9653559864901922, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 69474982 and 69475000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69475631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34737515 + 34737516.

It is an arithmetic number, because the mean of its divisors is an integer number (34737516).

Almost surely, 269475031 is an apocalyptic number.

69475031 is a deficient number, since it is larger than the sum of its proper divisors (1).

69475031 is an equidigital number, since it uses as much as digits as its factorization.

69475031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 69475031 is about 8335.1683246351. The cubic root of 69475031 is about 411.0956832102.

The spelling of 69475031 in words is "sixty-nine million, four hundred seventy-five thousand, thirty-one".