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7640916 = 2236071049
BaseRepresentation
bin11101001001011101010100
3112101012100220
4131021131110
53424002131
6431434340
7121642503
oct35113524
915335326
107640916
114349808
1226859b0
131776b6a
14102c83a
15a0de96
hex749754

7640916 has 24 divisors (see below), whose sum is σ = 17875200. Its totient is φ = 2540352.

The previous prime is 7640909. The next prime is 7640929. The reversal of 7640916 is 6190467.

It is a happy number.

7640916 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6760 + ... + 7808.

It is an arithmetic number, because the mean of its divisors is an integer number (744800).

Almost surely, 27640916 is an apocalyptic number.

It is an amenable number.

7640916 is an abundant number, since it is smaller than the sum of its proper divisors (10234284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7640916 is a wasteful number, since it uses less digits than its factorization.

7640916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1663 (or 1661 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 7640916 is about 2764.2206858353. The cubic root of 7640916 is about 196.9617110604.

The spelling of 7640916 in words is "seven million, six hundred forty thousand, nine hundred sixteen".

Divisors: 1 2 3 4 6 12 607 1049 1214 1821 2098 2428 3147 3642 4196 6294 7284 12588 636743 1273486 1910229 2546972 3820458 7640916