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42692540 = 22511194057
BaseRepresentation
bin1010001011011…
…0111110111100
32222100000011012
42202312332330
541412130130
64123014352
71025611022
oct242667674
988300135
1042692540
112210a5a0
121236a3b8
138aca277
145954712
153b34995
hex28b6fbc

42692540 has 24 divisors (see below), whose sum is σ = 97805232. Its totient is φ = 15524480.

The previous prime is 42692519. The next prime is 42692543. The reversal of 42692540 is 4529624.

It is a junction number, because it is equal to n+sod(n) for n = 42692497 and 42692506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42692543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96809 + ... + 97248.

It is an arithmetic number, because the mean of its divisors is an integer number (4075218).

Almost surely, 242692540 is an apocalyptic number.

It is an amenable number.

42692540 is an abundant number, since it is smaller than the sum of its proper divisors (55112692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42692540 is a wasteful number, since it uses less digits than its factorization.

42692540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194077 (or 194075 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 42692540 is about 6533.9528617828. The cubic root of 42692540 is about 349.5028042425.

The spelling of 42692540 in words is "forty-two million, six hundred ninety-two thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 194057 388114 776228 970285 1940570 2134627 3881140 4269254 8538508 10673135 21346270 42692540