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7161090 = 235238703
BaseRepresentation
bin11011010100010100000010
3111110211011120
4123110110002
53313123330
6413253110
7114603546
oct33242402
914424146
107161090
114051262
122494196
131639641
14d45a26
15966c10
hex6d4502

7161090 has 16 divisors (see below), whose sum is σ = 17186688. Its totient is φ = 1909616.

The previous prime is 7161071. The next prime is 7161103. The reversal of 7161090 is 901617.

It is a self number, because there is not a number n which added to its sum of digits gives 7161090.

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, 119322 + ... + 119381.

It is an arithmetic number, because the mean of its divisors is an integer number (1074168).

Almost surely, 27161090 is an apocalyptic number.

7161090 is an abundant number, since it is smaller than the sum of its proper divisors (10025598).

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

7161090 is a wasteful number, since it uses less digits than its factorization.

7161090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238713.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 7161090 is about 2676.0213003637. The cubic root of 7161090 is about 192.7494040601.

The spelling of 7161090 in words is "seven million, one hundred sixty-one thousand, ninety".

Divisors: 1 2 3 5 6 10 15 30 238703 477406 716109 1193515 1432218 2387030 3580545 7161090