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42772311 = 3211514129
BaseRepresentation
bin1010001100101…
…0011101010111
32222111001120200
42203022131113
541422203221
64124431543
71026362421
oct243123527
988431520
1042772311
112216451a
12123a85b3
138b2767a
145975811
153b4d426
hex28ca757

42772311 has 12 divisors (see below), whose sum is σ = 61850880. Its totient is φ = 28483200.

The previous prime is 42772309. The next prime is 42772319. The reversal of 42772311 is 11327724.

It is a happy number.

42772311 is a `hidden beast` number, since 427 + 7 + 231 + 1 = 666.

It is not a de Polignac number, because 42772311 - 21 = 42772309 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42772319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8295 + ... + 12423.

It is an arithmetic number, because the mean of its divisors is an integer number (5154240).

Almost surely, 242772311 is an apocalyptic number.

42772311 is a deficient number, since it is larger than the sum of its proper divisors (19078569).

42772311 is a wasteful number, since it uses less digits than its factorization.

42772311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5286 (or 5283 counting only the distinct ones).

The product of its digits is 2352, while the sum is 27.

The square root of 42772311 is about 6540.0543575723. The cubic root of 42772311 is about 349.7203507700.

The spelling of 42772311 in words is "forty-two million, seven hundred seventy-two thousand, three hundred eleven".

Divisors: 1 3 9 1151 3453 4129 10359 12387 37161 4752479 14257437 42772311