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1550430142 = 27930113259
BaseRepresentation
bin101110001101001…
…1010111110111110
311000001102000022121
41130122122332332
511133402231032
6413503033154
753264303332
oct13432327676
94001360277
101550430142
117261a5128
1237329b7ba
131b929b3b1
14109cad7c2
15911aba97
hex5c69afbe

1550430142 has 16 divisors (see below), whose sum is σ = 2356588800. Its totient is φ = 764913240.

The previous prime is 1550430131. The next prime is 1550430157. The reversal of 1550430142 is 2410340551.

It is a happy number.

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, 474109 + ... + 477367.

It is an arithmetic number, because the mean of its divisors is an integer number (147286800).

Almost surely, 21550430142 is an apocalyptic number.

1550430142 is a deficient number, since it is larger than the sum of its proper divisors (806158658).

1550430142 is a wasteful number, since it uses less digits than its factorization.

1550430142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6351.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 1550430142 is about 39375.5017999771. The cubic root of 1550430142 is about 1157.4015713363.

Adding to 1550430142 its reverse (2410340551), we get a palindrome (3960770693).

The spelling of 1550430142 in words is "one billion, five hundred fifty million, four hundred thirty thousand, one hundred forty-two".

Divisors: 1 2 79 158 3011 3259 6022 6518 237869 257461 475738 514922 9812849 19625698 775215071 1550430142