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1930230720 = 2632511229191
BaseRepresentation
bin111001100001100…
…1111101111000000
311222112001212202200
41303003033233000
512423114340340
6515311313200
765555455545
oct16303175700
94875055680
101930230720
11900623a00
1245a51b800
13249b89872
141444d6bcc
15b46d0330
hex730cfbc0

1930230720 has 504 divisors, whose sum is σ = 7588788480. Its totient is φ = 449433600.

The previous prime is 1930230707. The next prime is 1930230721. The reversal of 1930230720 is 270320391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1930230721) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10105825 + ... + 10106015.

It is an arithmetic number, because the mean of its divisors is an integer number (15057120).

Almost surely, 21930230720 is an apocalyptic number.

1930230720 is a gapful number since it is divisible by the number (10) 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 1930230720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3794394240).

1930230720 is an abundant number, since it is smaller than the sum of its proper divisors (5658557760).

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

1930230720 is a wasteful number, since it uses less digits than its factorization.

1930230720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 1930230720 is about 43934.3910848893. The cubic root of 1930230720 is about 1245.0966780298.

The spelling of 1930230720 in words is "one billion, nine hundred thirty million, two hundred thirty thousand, seven hundred twenty".