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3130404420 = 223511132329547
BaseRepresentation
bin1011101010010110…
…0010111001000100
322002011102000120110
42322211202321010
522402340420140
61234343233020
7140400666333
oct27245427104
98064360513
103130404420
1113670391a0
12734448770
133ab712110
14219a6dd1a
15134c52380
hexba962e44

3130404420 has 384 divisors, whose sum is σ = 11136061440. Its totient is φ = 645765120.

The previous prime is 3130404377. The next prime is 3130404421. The reversal of 3130404420 is 244040313.

It is not an unprimeable number, because it can be changed into a prime (3130404421) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5722587 + ... + 5723133.

It is an arithmetic number, because the mean of its divisors is an integer number (29000160).

Almost surely, 23130404420 is an apocalyptic number.

3130404420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3130404420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5568030720).

3130404420 is an abundant number, since it is smaller than the sum of its proper divisors (8005657020).

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

3130404420 is a wasteful number, since it uses less digits than its factorization.

3130404420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 3130404420 is about 55950.0171581743. The cubic root of 3130404420 is about 1462.8511901159.

Adding to 3130404420 its reverse (244040313), we get a palindrome (3374444733).

The spelling of 3130404420 in words is "three billion, one hundred thirty million, four hundred four thousand, four hundred twenty".