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51421442214 = 2373117400553
BaseRepresentation
bin101111111000111101…
…001111000010100110
311220201122111220202210
4233320331033002212
51320302342122324
635342255544250
73500162022102
oct577075170246
9156648456683
1051421442214
111a89807768a
129b70b2b086
134b063b81ac
1426bb424902
15150e572d29
hexbf8f4f0a6

51421442214 has 16 divisors (see below), whose sum is σ = 104251691952. Its totient is φ = 16905679488.

The previous prime is 51421442203. The next prime is 51421442227. The reversal of 51421442214 is 41224412415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58699839 + ... + 58700714.

It is an arithmetic number, because the mean of its divisors is an integer number (6515730747).

Almost surely, 251421442214 is an apocalyptic number.

51421442214 is an abundant number, since it is smaller than the sum of its proper divisors (52830249738).

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

51421442214 is a wasteful number, since it uses less digits than its factorization.

51421442214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117400631.

The product of its digits is 10240, while the sum is 30.

Adding to 51421442214 its reverse (41224412415), we get a palindrome (92645854629).

The spelling of 51421442214 in words is "fifty-one billion, four hundred twenty-one million, four hundred forty-two thousand, two hundred fourteen".

Divisors: 1 2 3 6 73 146 219 438 117400553 234801106 352201659 704403318 8570240369 17140480738 25710721107 51421442214