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42197233 = 13192943137
BaseRepresentation
bin1010000011111…
…0000011110001
32221101211201111
42200332003301
541300302413
64104233321
71021446001
oct240760361
987354644
1042197233
1121901451
121216b841
1389859a0
145866001
153a87d3d
hex283e0f1

42197233 has 32 divisors (see below), whose sum is σ = 51004800. Its totient is φ = 34546176.

The previous prime is 42197227. The next prime is 42197237. The reversal of 42197233 is 33279124.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-42197233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42197195 and 42197204.

It is not an unprimeable number, because it can be changed into a prime (42197237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307941 + ... + 308077.

It is an arithmetic number, because the mean of its divisors is an integer number (1593900).

Almost surely, 242197233 is an apocalyptic number.

42197233 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

42197233 is a deficient number, since it is larger than the sum of its proper divisors (8807567).

42197233 is a wasteful number, since it uses less digits than its factorization.

42197233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241.

The product of its digits is 9072, while the sum is 31.

The square root of 42197233 is about 6495.9397318633. The cubic root of 42197233 is about 348.1459317715.

The spelling of 42197233 in words is "forty-two million, one hundred ninety-seven thousand, two hundred thirty-three".

Divisors: 1 13 19 29 43 137 247 377 551 559 817 1247 1781 2603 3973 5891 7163 10621 16211 23693 33839 51649 75487 76583 111929 170839 308009 981331 1455077 2220907 3245941 42197233