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11990319 = 311363343
BaseRepresentation
bin101101101111…
…010100101111
3211120011121220
4231233110233
511032142234
61104554423
7203626125
oct55572457
924504556
1011990319
11684a560
124022a13
13263a783
141841915
1510bca49
hexb6f52f

11990319 has 8 divisors (see below), whose sum is σ = 17440512. Its totient is φ = 7266840.

The previous prime is 11990281. The next prime is 11990339. The reversal of 11990319 is 91309911.

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

It is not a de Polignac number, because 11990319 - 27 = 11990191 is a prime.

It is a super-2 number, since 2×119903192 = 287535499443522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 363343 = 11990319 / (1 + 1 + 9 + 9 + 0 + 3 + 1 + 9).

It is a self number, because there is not a number n which added to its sum of digits gives 11990319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990339) 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, 181639 + ... + 181704.

It is an arithmetic number, because the mean of its divisors is an integer number (2180064).

Almost surely, 211990319 is an apocalyptic number.

11990319 is a deficient number, since it is larger than the sum of its proper divisors (5450193).

11990319 is a wasteful number, since it uses less digits than its factorization.

11990319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363357.

The product of its (nonzero) digits is 2187, while the sum is 33.

The square root of 11990319 is about 3462.7040012106. The cubic root of 11990319 is about 228.8812653993.

The spelling of 11990319 in words is "eleven million, nine hundred ninety thousand, three hundred nineteen".

Divisors: 1 3 11 33 363343 1090029 3996773 11990319