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2301331220 = 2251063108247
BaseRepresentation
bin1000100100101011…
…1000011100010100
312221101100201221122
42021022320130110
514203120044340
61020205303112
7111012664316
oct21112703424
95841321848
102301331220
11a81050231
12542864a98
132a8a20066
1417b8d77b6
15d7085db5
hex892b8714

2301331220 has 24 divisors (see below), whose sum is σ = 4837386624. Its totient is φ = 919658016.

The previous prime is 2301331183. The next prime is 2301331231. The reversal of 2301331220 is 221331032.

It is a super-2 number, since 2×23013312202 = 10592250768293376800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32864 + ... + 75383.

It is an arithmetic number, because the mean of its divisors is an integer number (201557776).

Almost surely, 22301331220 is an apocalyptic number.

2301331220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2301331220 is an abundant number, since it is smaller than the sum of its proper divisors (2536055404).

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

2301331220 is a wasteful number, since it uses less digits than its factorization.

2301331220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109319 (or 109317 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2301331220 is about 47972.1921533715. The cubic root of 2301331220 is about 1320.2607420332.

Adding to 2301331220 its reverse (221331032), we get a palindrome (2522662252).

The spelling of 2301331220 in words is "two billion, three hundred one million, three hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1063 2126 4252 5315 10630 21260 108247 216494 432988 541235 1082470 2164940 115066561 230133122 460266244 575332805 1150665610 2301331220