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7490227069 = 13576171313
BaseRepresentation
bin1101111100111001…
…11100101101111101
3201100000011221220101
412332130330231331
5110314444231234
63235125321101
7353420610463
oct67634745575
921300157811
107490227069
1131a4046506
121550566191
13924a48930
14510aca833
152dc8a1814
hex1be73cb7d

7490227069 has 4 divisors (see below), whose sum is σ = 8066398396. Its totient is φ = 6914055744.

The previous prime is 7490227049. The next prime is 7490227091. The reversal of 7490227069 is 9607220947.

It is a happy number.

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 2500500025 + 4989727044 = 50005^2 + 70638^2 .

It is a cyclic number.

It is not a de Polignac number, because 7490227069 - 213 = 7490218877 is a prime.

It is a super-2 number, since 2×74902270692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7490227009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 288085644 + ... + 288085669.

It is an arithmetic number, because the mean of its divisors is an integer number (2016599599).

Almost surely, 27490227069 is an apocalyptic number.

It is an amenable number.

7490227069 is a deficient number, since it is larger than the sum of its proper divisors (576171327).

7490227069 is a wasteful number, since it uses less digits than its factorization.

7490227069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576171326.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 7490227069 is about 86546.0979420794. The cubic root of 7490227069 is about 1956.5832347715.

The spelling of 7490227069 in words is "seven billion, four hundred ninety million, two hundred twenty-seven thousand, sixty-nine".

Divisors: 1 13 576171313 7490227069