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42272741 = 724320063
BaseRepresentation
bin1010000101000…
…0011111100101
32221112200022002
42201100133211
541310211431
64110015045
71022212100
oct241203745
987480262
1042272741
1121953155
12121a7485
1389b1174
145885737
153aa03cb
hex28507e5

42272741 has 12 divisors (see below), whose sum is σ = 50320512. Its totient is φ = 35389368.

The previous prime is 42272729. The next prime is 42272743. The reversal of 42272741 is 14727224.

It is not a de Polignac number, because 42272741 - 222 = 38078437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42272743) 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, 7925 + ... + 12138.

It is an arithmetic number, because the mean of its divisors is an integer number (4193376).

Almost surely, 242272741 is an apocalyptic number.

It is an amenable number.

42272741 is a deficient number, since it is larger than the sum of its proper divisors (8047771).

42272741 is a wasteful number, since it uses less digits than its factorization.

42272741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20120 (or 20113 counting only the distinct ones).

The product of its digits is 6272, while the sum is 29.

The square root of 42272741 is about 6501.7490723651. The cubic root of 42272741 is about 348.3534662224.

Adding to 42272741 its reverse (14727224), we get a palindrome (56999965).

The spelling of 42272741 in words is "forty-two million, two hundred seventy-two thousand, seven hundred forty-one".

Divisors: 1 7 43 49 301 2107 20063 140441 862709 983087 6038963 42272741