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33130893 = 311043631
BaseRepresentation
bin111111001100…
…0100110001101
32022100020001010
41332120212031
531440142033
63142035433
7551415345
oct176304615
968306033
1033130893
1117779804
12b118b79
136b300a3
144585d25
152d96863
hex1f9898d

33130893 has 4 divisors (see below), whose sum is σ = 44174528. Its totient is φ = 22087260.

The previous prime is 33130859. The next prime is 33130901. The reversal of 33130893 is 39803133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 33130893 - 218 = 32868749 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33130893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33130843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5521813 + ... + 5521818.

It is an arithmetic number, because the mean of its divisors is an integer number (11043632).

Almost surely, 233130893 is an apocalyptic number.

It is an amenable number.

33130893 is a deficient number, since it is larger than the sum of its proper divisors (11043635).

33130893 is a wasteful number, since it uses less digits than its factorization.

33130893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11043634.

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 33130893 is about 5755.9441449687. The cubic root of 33130893 is about 321.1769581652.

The spelling of 33130893 in words is "thirty-three million, one hundred thirty thousand, eight hundred ninety-three".

Divisors: 1 3 11043631 33130893