Search a number
-
+
2231424140 = 2251129349753
BaseRepresentation
bin1000010100000000…
…1101010010001100
312202111211002110112
42011000031102030
514032221033030
61005231055152
7106203535511
oct20500152214
95674732415
102231424140
11a45642a90
125233714b8
132973b491a
141724db308
15d0d77a95
hex8500d48c

2231424140 has 48 divisors (see below), whose sum is σ = 5288280480. Its totient is φ = 783444480.

The previous prime is 2231424137. The next prime is 2231424161. The reversal of 2231424140 is 414241322.

It is a super-3 number, since 3×22314241403 (a number of 29 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168497 + ... + 181256.

It is an arithmetic number, because the mean of its divisors is an integer number (110172510).

Almost surely, 22231424140 is an apocalyptic number.

2231424140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231424140 is an abundant number, since it is smaller than the sum of its proper divisors (3056856340).

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

2231424140 is a wasteful number, since it uses less digits than its factorization.

2231424140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349802 (or 349800 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2231424140 is about 47237.9523264927. The cubic root of 2231424140 is about 1306.7546144064.

Adding to 2231424140 its reverse (414241322), we get a palindrome (2645665462).

The spelling of 2231424140 in words is "two billion, two hundred thirty-one million, four hundred twenty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 29 44 55 58 110 116 145 220 290 319 580 638 1276 1595 3190 6380 349753 699506 1399012 1748765 3497530 3847283 6995060 7694566 10142837 15389132 19236415 20285674 38472830 40571348 50714185 76945660 101428370 111571207 202856740 223142414 446284828 557856035 1115712070 2231424140