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1142054331 = 311137252611
BaseRepresentation
bin100010000010010…
…0101110110111011
32221120222101000120
41010010211312323
54314331214311
6305154104323
740205205315
oct10404456673
92846871016
101142054331
11536729360
1227a57b0a3
131527b65c2
14ab9687b5
156a3e1706
hex44125dbb

1142054331 has 16 divisors (see below), whose sum is σ = 1673301888. Its totient is φ = 687099200.

The previous prime is 1142054311. The next prime is 1142054341. The reversal of 1142054331 is 1334502411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1142054331 - 210 = 1142053307 is a prime.

It is a super-2 number, since 2×11420543312 = 2608576189911715122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142054311) 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, 121785 + ... + 130826.

It is an arithmetic number, because the mean of its divisors is an integer number (104581368).

Almost surely, 21142054331 is an apocalyptic number.

1142054331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1142054331 is a deficient number, since it is larger than the sum of its proper divisors (531247557).

1142054331 is a wasteful number, since it uses less digits than its factorization.

1142054331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252762.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1142054331 is about 33794.2943557045. The cubic root of 1142054331 is about 1045.2710486359.

Adding to 1142054331 its reverse (1334502411), we get a palindrome (2476556742).

The spelling of 1142054331 in words is "one billion, one hundred forty-two million, fifty-four thousand, three hundred thirty-one".

Divisors: 1 3 11 33 137 411 1507 4521 252611 757833 2778721 8336163 34607707 103823121 380684777 1142054331