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42877782 = 233794033
BaseRepresentation
bin1010001110010…
…0001101010110
32222200102021000
42203210031112
541434042112
64131004130
71030312053
oct243441526
988612230
1042877782
1122226792
1212439646
138b6368c
1459a202a
153b6e7dc
hex28e4356

42877782 has 16 divisors (see below), whose sum is σ = 95284080. Its totient is φ = 14292576.

The previous prime is 42877777. The next prime is 42877801. The reversal of 42877782 is 28777824.

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, 396963 + ... + 397070.

It is an arithmetic number, because the mean of its divisors is an integer number (5955255).

Almost surely, 242877782 is an apocalyptic number.

42877782 is an abundant number, since it is smaller than the sum of its proper divisors (52406298).

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

42877782 is a wasteful number, since it uses less digits than its factorization.

42877782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794044 (or 794038 counting only the distinct ones).

The product of its digits is 351232, while the sum is 45.

The square root of 42877782 is about 6548.1128579156. The cubic root of 42877782 is about 350.0075699043.

It can be divided in two parts, 428 and 77782, that added together give a triangular number (78210 = T395).

The spelling of 42877782 in words is "forty-two million, eight hundred seventy-seven thousand, seven hundred eighty-two".

Divisors: 1 2 3 6 9 18 27 54 794033 1588066 2382099 4764198 7146297 14292594 21438891 42877782