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42744611 = 721367103
BaseRepresentation
bin1010001100001…
…1101100100011
32222102122120202
42203003230203
541420311421
64124055415
71026215600
oct243035443
988378522
1042744611
1122145728
121239456b
138b17b90
1459696a7
153b4510b
hex28c3b23

42744611 has 12 divisors (see below), whose sum is σ = 53548992. Its totient is φ = 33819408.

The previous prime is 42744607. The next prime is 42744641. The reversal of 42744611 is 11644724.

It is a happy number.

It is not a de Polignac number, because 42744611 - 22 = 42744607 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42744641) 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, 32915 + ... + 34188.

It is an arithmetic number, because the mean of its divisors is an integer number (4462416).

Almost surely, 242744611 is an apocalyptic number.

42744611 is a deficient number, since it is larger than the sum of its proper divisors (10804381).

42744611 is a wasteful number, since it uses less digits than its factorization.

42744611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67130 (or 67123 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 42744611 is about 6537.9362951928. The cubic root of 42744611 is about 349.6448397253.

The spelling of 42744611 in words is "forty-two million, seven hundred forty-four thousand, six hundred eleven".

Divisors: 1 7 13 49 91 637 67103 469721 872339 3288047 6106373 42744611