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11995213 = 192327449
BaseRepresentation
bin101101110000…
…100001001101
3211120102100011
4231300201031
511032321323
61105033221
7203646316
oct55604115
924512304
1011995213
1168531aa
124025811
13263ca79
14184360d
1510be20d
hexb7084d

11995213 has 8 divisors (see below), whose sum is σ = 13176000. Its totient is φ = 10869408.

The previous prime is 11995201. The next prime is 11995229. The reversal of 11995213 is 31259911.

It is a happy number.

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 11995213 - 29 = 11994701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11995513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13288 + ... + 14161.

It is an arithmetic number, because the mean of its divisors is an integer number (1647000).

Almost surely, 211995213 is an apocalyptic number.

It is an amenable number.

11995213 is a deficient number, since it is larger than the sum of its proper divisors (1180787).

11995213 is a wasteful number, since it uses less digits than its factorization.

11995213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27491.

The product of its digits is 2430, while the sum is 31.

The square root of 11995213 is about 3463.4106022821. The cubic root of 11995213 is about 228.9124014224.

The spelling of 11995213 in words is "eleven million, nine hundred ninety-five thousand, two hundred thirteen".

Divisors: 1 19 23 437 27449 521531 631327 11995213