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190263497 = 10117310889
BaseRepresentation
bin10110101011100…
…11000011001001
3111021000101110012
423111303003021
5342201412442
630514001305
74500133034
oct1325630311
9437011405
10190263497
1198442866
1253876235
1330558668
141b3aa01b
1511a84582
hexb5730c9

190263497 has 8 divisors (see below), whose sum is σ = 193275720. Its totient is φ = 187273600.

The previous prime is 190263487. The next prime is 190263499. The reversal of 190263497 is 794362091.

190263497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 64464841 + 125798656 = 8029^2 + 11216^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 190263497 - 218 = 190001353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190263499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12029 + ... + 22917.

It is an arithmetic number, because the mean of its divisors is an integer number (24159465).

Almost surely, 2190263497 is an apocalyptic number.

It is an amenable number.

190263497 is a deficient number, since it is larger than the sum of its proper divisors (3012223).

190263497 is a wasteful number, since it uses less digits than its factorization.

190263497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11163.

The product of its (nonzero) digits is 81648, while the sum is 41.

The square root of 190263497 is about 13793.6034813242. The cubic root of 190263497 is about 575.1553425278.

The spelling of 190263497 in words is "one hundred ninety million, two hundred sixty-three thousand, four hundred ninety-seven".

Divisors: 1 101 173 10889 17473 1099789 1883797 190263497