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11512134 = 232639563
BaseRepresentation
bin101011111010…
…100101000110
3210122212200100
4223322211012
510421342014
61050424530
7166565034
oct53724506
923585610
1011512134
116553267
123a32146
132500c1a
141759554
151026009
hexafa946

11512134 has 12 divisors (see below), whose sum is σ = 24942996. Its totient is φ = 3837372.

The previous prime is 11512097. The next prime is 11512147. The reversal of 11512134 is 43121511.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 639563 = 11512134 / (1 + 1 + 5 + 1 + 2 + 1 + 3 + 4).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 319764 + ... + 319799.

It is an arithmetic number, because the mean of its divisors is an integer number (2078583).

Almost surely, 211512134 is an apocalyptic number.

11512134 is an abundant number, since it is smaller than the sum of its proper divisors (13430862).

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

11512134 is a wasteful number, since it uses less digits than its factorization.

11512134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639571 (or 639568 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 11512134 is about 3392.9535805843. The cubic root of 11512134 is about 225.7972311341.

Adding to 11512134 its reverse (43121511), we get a palindrome (54633645).

The spelling of 11512134 in words is "eleven million, five hundred twelve thousand, one hundred thirty-four".

Divisors: 1 2 3 6 9 18 639563 1279126 1918689 3837378 5756067 11512134