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42759963 = 3261711097
BaseRepresentation
bin1010001100011…
…1011100011011
32222110102122100
42203013130123
541421304323
64124254443
71026311421
oct243073433
988412570
1042759963
1122156214
12123a1423
138b21b6c
145971111
153b49943
hex28c771b

42759963 has 24 divisors (see below), whose sum is σ = 63719136. Its totient is φ = 27619200.

The previous prime is 42759929. The next prime is 42759973. The reversal of 42759963 is 36995724.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-42759963 is a prime.

It is a super-2 number, since 2×427599632 = 3656828871522738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42759973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38431 + ... + 39527.

It is an arithmetic number, because the mean of its divisors is an integer number (2654964).

Almost surely, 242759963 is an apocalyptic number.

42759963 is a deficient number, since it is larger than the sum of its proper divisors (20959173).

42759963 is a wasteful number, since it uses less digits than its factorization.

42759963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1235 (or 1232 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 42759963 is about 6539.1102605783. The cubic root of 42759963 is about 349.6866937739.

The spelling of 42759963 in words is "forty-two million, seven hundred fifty-nine thousand, nine hundred sixty-three".

Divisors: 1 3 9 61 71 183 213 549 639 1097 3291 4331 9873 12993 38979 66917 77887 200751 233661 602253 700983 4751107 14253321 42759963