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130051428 = 2231317192989
BaseRepresentation
bin1111100000001…
…10110101100100
3100001201022000120
413300012311210
5231243121203
620523241540
73136263453
oct760066544
9301638016
10130051428
1167457621
12376792b0
1320c36010
14133b4b9a
15b63db53
hex7c06d64

130051428 has 192 divisors, whose sum is σ = 381024000. Its totient is φ = 34062336.

The previous prime is 130051387. The next prime is 130051433. The reversal of 130051428 is 824150031.

It is a junction number, because it is equal to n+sod(n) for n = 130051398 and 130051407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1461208 + ... + 1461296.

It is an arithmetic number, because the mean of its divisors is an integer number (1984500).

Almost surely, 2130051428 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130051428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190512000).

130051428 is an abundant number, since it is smaller than the sum of its proper divisors (250972572).

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

130051428 is a wasteful number, since it uses less digits than its factorization.

130051428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 130051428 is about 11404.0092949804. The cubic root of 130051428 is about 506.6464940799.

The spelling of 130051428 in words is "one hundred thirty million, fifty-one thousand, four hundred twenty-eight".