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69224431 is a prime number
BaseRepresentation
bin1000010000001…
…00011111101111
311211020222001211
410020010133233
5120210140211
610511415251
71500253333
oct410043757
9154228054
1069224431
1136091381
121b224527
1311459803
14929d7c3
156125e21
hex42047ef

69224431 has 2 divisors, whose sum is σ = 69224432. Its totient is φ = 69224430.

The previous prime is 69224423. The next prime is 69224437. The reversal of 69224431 is 13442296.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69224431 - 23 = 69224423 is a prime.

It is a super-2 number, since 2×692244312 = 9584043694547522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 69224393 and 69224402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69224437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34612215 + 34612216.

It is an arithmetic number, because the mean of its divisors is an integer number (34612216).

Almost surely, 269224431 is an apocalyptic number.

69224431 is a deficient number, since it is larger than the sum of its proper divisors (1).

69224431 is an equidigital number, since it uses as much as digits as its factorization.

69224431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 69224431 is about 8320.1220543932. The cubic root of 69224431 is about 410.6008066463.

The spelling of 69224431 in words is "sixty-nine million, two hundred twenty-four thousand, four hundred thirty-one".