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2320340240 = 245260911117
BaseRepresentation
bin1000101001001101…
…1001010100010000
312222201010111102102
42022103121110100
514223001341430
61022124535532
7111333365231
oct21223312420
95881114372
102320340240
11a90853a69
125490b15a8
132ac9473ba
14180245088
15d8a8d345
hex8a4d9510

2320340240 has 40 divisors (see below), whose sum is σ = 5397344280. Its totient is φ = 927696896.

The previous prime is 2320340219. The next prime is 2320340291. The reversal of 2320340240 is 420430232.

It can be written as a sum of positive squares in 4 ways, for example, as 17875984 + 2302464256 = 4228^2 + 47984^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203162 + ... + 214278.

It is an arithmetic number, because the mean of its divisors is an integer number (134933607).

Almost surely, 22320340240 is an apocalyptic number.

2320340240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320340240 is an abundant number, since it is smaller than the sum of its proper divisors (3077004040).

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

2320340240 is a wasteful number, since it uses less digits than its factorization.

2320340240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13739 (or 13733 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 2320340240 is about 48169.9101099431. The cubic root of 2320340240 is about 1323.8859015168.

Adding to 2320340240 its reverse (420430232), we get a palindrome (2740770472).

The spelling of 2320340240 in words is "two billion, three hundred twenty million, three hundred forty thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 2609 5218 10436 11117 13045 20872 22234 26090 41744 44468 52180 55585 88936 104360 111170 177872 208720 222340 444680 889360 29004253 58008506 116017012 145021265 232034024 290042530 464068048 580085060 1160170120 2320340240