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918061045211 = 4523320296267
BaseRepresentation
bin11010101110000001011…
…00111101010111011011
310020202200020211020112202
431113000230331113123
5110020142111421321
61541430150200415
7123220260062012
oct15270054752733
93222606736482
10918061045211
11324390587442
12129b1495310b
136875a5412cb
1432611d83a79
1518d32e4270b
hexd5c0b3d5db

918061045211 has 4 divisors (see below), whose sum is σ = 918081386712. Its totient is φ = 918040703712.

The previous prime is 918061045157. The next prime is 918061045259. The reversal of 918061045211 is 112540160819.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-918061045211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (918061045411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10102901 + ... + 10193366.

It is an arithmetic number, because the mean of its divisors is an integer number (229520346678).

Almost surely, 2918061045211 is an apocalyptic number.

918061045211 is a deficient number, since it is larger than the sum of its proper divisors (20341501).

918061045211 is a wasteful number, since it uses less digits than its factorization.

918061045211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20341500.

The product of its (nonzero) digits is 17280, while the sum is 38.

The spelling of 918061045211 in words is "nine hundred eighteen billion, sixty-one million, forty-five thousand, two hundred eleven".

Divisors: 1 45233 20296267 918061045211