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54772122 = 2379115553
BaseRepresentation
bin1101000011110…
…0000110011010
310211001201020010
43100330012122
5103010201442
65233542350
71233361326
oct320740632
9124051203
1054772122
1128a10119
12164149b6
13b469552
1473ba986
154c1db9c
hex343c19a

54772122 has 16 divisors (see below), whose sum is σ = 110931840. Its totient is φ = 18026112.

The previous prime is 54772111. The next prime is 54772129. The reversal of 54772122 is 22127745.

It is a self number, because there is not a number n which added to its sum of digits gives 54772122.

It is not an unprimeable number, because it can be changed into a prime (54772129) 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, 57303 + ... + 58250.

It is an arithmetic number, because the mean of its divisors is an integer number (6933240).

Almost surely, 254772122 is an apocalyptic number.

54772122 is an abundant number, since it is smaller than the sum of its proper divisors (56159718).

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

54772122 is a wasteful number, since it uses less digits than its factorization.

54772122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115637.

The product of its digits is 7840, while the sum is 30.

The square root of 54772122 is about 7400.8190087314. The cubic root of 54772122 is about 379.7693013374.

Adding to 54772122 its reverse (22127745), we get a palindrome (76899867).

The spelling of 54772122 in words is "fifty-four million, seven hundred seventy-two thousand, one hundred twenty-two".

Divisors: 1 2 3 6 79 158 237 474 115553 231106 346659 693318 9128687 18257374 27386061 54772122