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7642069 is a prime number
BaseRepresentation
bin11101001001101111010101
3112101020221121
4131021233111
53424021234
6431443541
7121646041
oct35115725
915336847
107642069
11434a666
1226865b1
131777546
14102d021
15a0e4b4
hex749bd5

7642069 has 2 divisors, whose sum is σ = 7642070. Its totient is φ = 7642068.

The previous prime is 7642043. The next prime is 7642111. The reversal of 7642069 is 9602467.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4796100 + 2845969 = 2190^2 + 1687^2 .

It is a cyclic number.

It is not a de Polignac number, because 7642069 - 27 = 7641941 is a prime.

It is a super-2 number, since 2×76420692 = 116802437201522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7642039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3821034 + 3821035.

It is an arithmetic number, because the mean of its divisors is an integer number (3821035).

Almost surely, 27642069 is an apocalyptic number.

It is an amenable number.

7642069 is a deficient number, since it is larger than the sum of its proper divisors (1).

7642069 is an equidigital number, since it uses as much as digits as its factorization.

7642069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 7642069 is about 2764.4292358460. The cubic root of 7642069 is about 196.9716176139.

The spelling of 7642069 in words is "seven million, six hundred forty-two thousand, sixty-nine".