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42722152 = 2311485479
BaseRepresentation
bin1010001011111…
…0001101101000
32222101111202221
42202332031220
541414102102
64123403424
71026063244
oct242761550
988344687
1042722152
112212a870
1212383574
138b0a8a5
145961424
153b3d637
hex28be368

42722152 has 16 divisors (see below), whose sum is σ = 87386400. Its totient is φ = 19419120.

The previous prime is 42722149. The next prime is 42722159. The reversal of 42722152 is 25122724.

42722152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×427221522 = 3650364543022208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42722159) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 242652 + ... + 242827.

It is an arithmetic number, because the mean of its divisors is an integer number (5461650).

Almost surely, 242722152 is an apocalyptic number.

It is an amenable number.

42722152 is an abundant number, since it is smaller than the sum of its proper divisors (44664248).

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

42722152 is a wasteful number, since it uses less digits than its factorization.

42722152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485496 (or 485492 counting only the distinct ones).

The product of its digits is 2240, while the sum is 25.

The square root of 42722152 is about 6536.2184786006. The cubic root of 42722152 is about 349.5835918549.

Adding to 42722152 its reverse (25122724), we get a palindrome (67844876).

The spelling of 42722152 in words is "forty-two million, seven hundred twenty-two thousand, one hundred fifty-two".

Divisors: 1 2 4 8 11 22 44 88 485479 970958 1941916 3883832 5340269 10680538 21361076 42722152