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2320431320 = 235173792227
BaseRepresentation
bin1000101001001110…
…1111100011011000
312222201022010100202
42022103233203120
514223012300240
61022130521332
7111334224614
oct21223574330
95881263322
102320431320
11a90906439
12549136248
132ac9799ac
1418026a344
15d8aaa315
hex8a4ef8d8

2320431320 has 64 divisors (see below), whose sum is σ = 5677555680. Its totient is φ = 849954816.

The previous prime is 2320431299. The next prime is 2320431329. The reversal of 2320431320 is 231340232.

2320431320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 2320431292 and 2320431301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320431329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20954 + ... + 71273.

Almost surely, 22320431320 is an apocalyptic number.

2320431320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320431320 is an abundant number, since it is smaller than the sum of its proper divisors (3357124360).

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

2320431320 is a wasteful number, since it uses less digits than its factorization.

2320431320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92292 (or 92288 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 2320431320 is about 48170.8555041324. The cubic root of 2320431320 is about 1323.9032233946.

Adding to 2320431320 its reverse (231340232), we get a palindrome (2551771552).

The spelling of 2320431320 in words is "two billion, three hundred twenty million, four hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 37 40 68 74 85 136 148 170 185 296 340 370 629 680 740 1258 1480 2516 3145 5032 6290 12580 25160 92227 184454 368908 461135 737816 922270 1567859 1844540 3135718 3412399 3689080 6271436 6824798 7839295 12542872 13649596 15678590 17061995 27299192 31357180 34123990 58010783 62714360 68247980 116021566 136495960 232043132 290053915 464086264 580107830 1160215660 2320431320