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1024421431 = 11659141319
BaseRepresentation
bin111101000011110…
…110111000110111
32122101122000000111
4331003312320313
54044222441211
6245352523451
734246303255
oct7503667067
92571560014
101024421431
11486293a90
122470b0587
1313430ac37
149a0a75d5
155ee07421
hex3d0f6e37

1024421431 has 8 divisors (see below), whose sum is σ = 1119254400. Its totient is φ = 929872440.

The previous prime is 1024421429. The next prime is 1024421459. The reversal of 1024421431 is 1341244201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1024421431 - 21 = 1024421429 is a prime.

It is a super-2 number, since 2×10244214312 = 2098878536584175522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024421831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63411 + ... + 77908.

It is an arithmetic number, because the mean of its divisors is an integer number (139906800).

Almost surely, 21024421431 is an apocalyptic number.

1024421431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1024421431 is a deficient number, since it is larger than the sum of its proper divisors (94832969).

1024421431 is a wasteful number, since it uses less digits than its factorization.

1024421431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141989.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1024421431 is about 32006.5841820086. The cubic root of 1024421431 is about 1008.0750943335.

Adding to 1024421431 its reverse (1341244201), we get a palindrome (2365665632).

The spelling of 1024421431 in words is "one billion, twenty-four million, four hundred twenty-one thousand, four hundred thirty-one".

Divisors: 1 11 659 7249 141319 1554509 93129221 1024421431