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2122013320 = 23577578619
BaseRepresentation
bin111111001111011…
…0101101010001000
312110212221110000221
41332132311222020
513321213411240
6550322035424
7103404546520
oct17636655210
95425843027
102122013320
11999904019
124b27a8b74
1327a8277ab
14161b7a680
15c6464a4a
hex7e7b5a88

2122013320 has 32 divisors (see below), whose sum is σ = 5456606400. Its totient is φ = 727547328.

The previous prime is 2122013303. The next prime is 2122013323. The reversal of 2122013320 is 233102212.

It is a junction number, because it is equal to n+sod(n) for n = 2122013294 and 2122013303.

It is not an unprimeable number, because it can be changed into a prime (2122013323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3789030 + ... + 3789589.

It is an arithmetic number, because the mean of its divisors is an integer number (170518950).

Almost surely, 22122013320 is an apocalyptic number.

2122013320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122013320 is an abundant number, since it is smaller than the sum of its proper divisors (3334593080).

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

2122013320 is a wasteful number, since it uses less digits than its factorization.

2122013320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7578637 (or 7578633 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2122013320 is about 46065.3158026731. The cubic root of 2122013320 is about 1285.0381917217.

Adding to 2122013320 its reverse (233102212), we get a palindrome (2355115532).

The spelling of 2122013320 in words is "two billion, one hundred twenty-two million, thirteen thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 20 28 35 40 56 70 140 280 7578619 15157238 30314476 37893095 53050333 60628952 75786190 106100666 151572380 212201332 265251665 303144760 424402664 530503330 1061006660 2122013320