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2248143381 = 321122708519
BaseRepresentation
bin1000010111111111…
…1111001000010101
312210200021111221200
42011333333020111
514101011042011
61011025303113
7106465621611
oct20577771025
95720244850
102248143381
11a54022440
12528a94a99
1329a9b9973
14174810341
15d257b856
hex85fff215

2248143381 has 12 divisors (see below), whose sum is σ = 3542529120. Its totient is φ = 1362511080.

The previous prime is 2248143377. The next prime is 2248143383. The reversal of 2248143381 is 1833418422.

It is a happy number.

It is not a de Polignac number, because 2248143381 - 22 = 2248143377 is a prime.

It is a super-2 number, since 2×22481433812 = 10108297323068222322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2248143383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11354161 + ... + 11354358.

It is an arithmetic number, because the mean of its divisors is an integer number (295210760).

Almost surely, 22248143381 is an apocalyptic number.

It is an amenable number.

2248143381 is a deficient number, since it is larger than the sum of its proper divisors (1294385739).

2248143381 is a wasteful number, since it uses less digits than its factorization.

2248143381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22708536 (or 22708533 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 2248143381 is about 47414.5903810209. The cubic root of 2248143381 is about 1310.0101743475.

The spelling of 2248143381 in words is "two billion, two hundred forty-eight million, one hundred forty-three thousand, three hundred eighty-one".

Divisors: 1 3 9 11 33 99 22708519 68125557 204376671 249793709 749381127 2248143381