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11315690 = 251131569
BaseRepresentation
bin101011001010…
…100111101010
3210021220012122
4223022213222
510344100230
61042311242
7165116231
oct53124752
923256178
1011315690
116429711
123958522
132462699
141707b18
15ed7be5
hexaca9ea

11315690 has 8 divisors (see below), whose sum is σ = 20368260. Its totient is φ = 4526272.

The previous prime is 11315687. The next prime is 11315699. The reversal of 11315690 is 9651311.

It can be written as a sum of positive squares in 2 ways, for example, as 10426441 + 889249 = 3229^2 + 943^2 .

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

It is a super-2 number, since 2×113156902 = 256089680352200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11315699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565775 + ... + 565794.

Almost surely, 211315690 is an apocalyptic number.

11315690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11315690 is a deficient number, since it is larger than the sum of its proper divisors (9052570).

11315690 is a wasteful number, since it uses less digits than its factorization.

11315690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131576.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 11315690 is about 3363.8802000071. The cubic root of 11315690 is about 224.5055148835.

The spelling of 11315690 in words is "eleven million, three hundred fifteen thousand, six hundred ninety".

Divisors: 1 2 5 10 1131569 2263138 5657845 11315690