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2390134320 = 243257974889
BaseRepresentation
bin1000111001110110…
…1000111000110000
320011120110101220100
42032131220320300
514343333244240
61033100512400
7113141543430
oct21635507060
96146411810
102390134320
111017194322
1256854b700
132c1243282
141896122c0
15dec77e30
hex8e768e30

2390134320 has 240 divisors, whose sum is σ = 9270031680. Its totient is φ = 540573696.

The previous prime is 2390134277. The next prime is 2390134333. The reversal of 2390134320 is 234310932.

It is a happy number.

It is a Cunningham number, because it is equal to 488892-1.

It is a tau number, because it is divible by the number of its divisors (240).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 486436 + ... + 491324.

It is an arithmetic number, because the mean of its divisors is an integer number (38625132).

Almost surely, 22390134320 is an apocalyptic number.

2390134320 is a gapful number since it is divisible by the number (20) 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 2390134320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4635015840).

2390134320 is an abundant number, since it is smaller than the sum of its proper divisors (6879897360).

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

2390134320 is a wasteful number, since it uses less digits than its factorization.

2390134320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5012 (or 5003 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 2390134320 is about 48888.9999897728. Note that the first 4 decimals coincide. The cubic root of 2390134320 is about 1337.0288219491.

The spelling of 2390134320 in words is "two billion, three hundred ninety million, one hundred thirty-four thousand, three hundred twenty".