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42219976 = 23171916339
BaseRepresentation
bin1010000100001…
…1100111001000
32221102222220211
42201003213020
541302014401
64104530504
71021602211
oct241034710
987388824
1042219976
1121917547
1212180a34
138993146
145870408
153a8e951
hex28439c8

42219976 has 32 divisors (see below), whose sum is σ = 88236000. Its totient is φ = 18821376.

The previous prime is 42219967. The next prime is 42219979. The reversal of 42219976 is 67991224.

It is not an unprimeable number, because it can be changed into a prime (42219979) 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, 5586 + ... + 10753.

It is an arithmetic number, because the mean of its divisors is an integer number (2757375).

Almost surely, 242219976 is an apocalyptic number.

42219976 is the 4110-th centered pentagonal number.

It is an amenable number.

42219976 is an abundant number, since it is smaller than the sum of its proper divisors (46016024).

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

42219976 is a wasteful number, since it uses less digits than its factorization.

42219976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16381 (or 16377 counting only the distinct ones).

The product of its digits is 54432, while the sum is 40.

The square root of 42219976 is about 6497.6900510874. The cubic root of 42219976 is about 348.2084671583.

The spelling of 42219976 in words is "forty-two million, two hundred nineteen thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 17 19 34 38 68 76 136 152 323 646 1292 2584 16339 32678 65356 130712 277763 310441 555526 620882 1111052 1241764 2222104 2483528 5277497 10554994 21109988 42219976