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7628090 = 25762809
BaseRepresentation
bin11101000110010100111010
3112100112202212
4131012110322
53423044330
6431255122
7121560221
oct35062472
915315685
107628090
114340108
12267a4a2
131771082
141027cb8
15a0a295
hex74653a

7628090 has 8 divisors (see below), whose sum is σ = 13730580. Its totient is φ = 3051232.

The previous prime is 7628083. The next prime is 7628107. The reversal of 7628090 is 908267.

It can be written as a sum of positive squares in 2 ways, for example, as 6446521 + 1181569 = 2539^2 + 1087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381395 + ... + 381414.

Almost surely, 27628090 is an apocalyptic number.

7628090 is a deficient number, since it is larger than the sum of its proper divisors (6102490).

7628090 is a wasteful number, since it uses less digits than its factorization.

7628090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762816.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 7628090 is about 2761.8997085340. The cubic root of 7628090 is about 196.8514430536.

The spelling of 7628090 in words is "seven million, six hundred twenty-eight thousand, ninety".

Divisors: 1 2 5 10 762809 1525618 3814045 7628090