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1421312130 = 233572532027
BaseRepresentation
bin101010010110111…
…1000000010000010
310200001110010201000
41110231320002002
510402323442010
6353011352430
750135645100
oct12455700202
93601403630
101421312130
1166a325927
12337bb2716
131986011c4
14d6a9cc70
1584ba47c0
hex54b78082

1421312130 has 192 divisors, whose sum is σ = 4494372480. Its totient is φ = 318584448.

The previous prime is 1421312063. The next prime is 1421312143. The reversal of 1421312130 is 312131241.

1421312130 is a `hidden beast` number, since 1 + 421 + 31 + 213 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 700177 + ... + 702203.

It is an arithmetic number, because the mean of its divisors is an integer number (23408190).

Almost surely, 21421312130 is an apocalyptic number.

1421312130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421312130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2247186240).

1421312130 is an abundant number, since it is smaller than the sum of its proper divisors (3073060350).

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

1421312130 is a wasteful number, since it uses less digits than its factorization.

1421312130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110 (or 2097 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1421312130 is about 37700.2935001838. The cubic root of 1421312130 is about 1124.3369604132.

Adding to 1421312130 its reverse (312131241), we get a palindrome (1733443371).

The spelling of 1421312130 in words is "one billion, four hundred twenty-one million, three hundred twelve thousand, one hundred thirty".