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42059142 = 233778873
BaseRepresentation
bin1010000001110…
…0010110000110
32221010211022000
42200130112012
541231343032
64101250130
71020332256
oct240342606
987124260
1042059142
1121817724
1212103946
138937b88
14582b966
153a5be7c
hex281c586

42059142 has 16 divisors (see below), whose sum is σ = 93464880. Its totient is φ = 14019696.

The previous prime is 42059113. The next prime is 42059159. The reversal of 42059142 is 24195024.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389383 + ... + 389490.

It is an arithmetic number, because the mean of its divisors is an integer number (5841555).

Almost surely, 242059142 is an apocalyptic number.

42059142 is an abundant number, since it is smaller than the sum of its proper divisors (51405738).

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

42059142 is a wasteful number, since it uses less digits than its factorization.

42059142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778884 (or 778878 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 42059142 is about 6485.3019975943. The cubic root of 42059142 is about 347.7657460349.

The spelling of 42059142 in words is "forty-two million, fifty-nine thousand, one hundred forty-two".

Divisors: 1 2 3 6 9 18 27 54 778873 1557746 2336619 4673238 7009857 14019714 21029571 42059142