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42971194292 = 2213826369121
BaseRepresentation
bin101000000001010010…
…000110001110110100
311002220201212211211112
4220001102012032310
51201001111204132
631423553454152
73050603060555
oct500122061664
9132821784745
1042971194292
1117251134314
1283b2b71358
13408a7bc5b0
14211903632c
1511b778aab2
hexa014863b4

42971194292 has 12 divisors (see below), whose sum is σ = 80984173956. Its totient is φ = 19832858880.

The previous prime is 42971194289. The next prime is 42971194307. The reversal of 42971194292 is 29249117924.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 8729912356 + 34241281936 = 93434^2 + 185044^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 42971194292.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413184509 + ... + 413184612.

It is an arithmetic number, because the mean of its divisors is an integer number (6748681163).

Almost surely, 242971194292 is an apocalyptic number.

It is an amenable number.

42971194292 is a deficient number, since it is larger than the sum of its proper divisors (38012979664).

42971194292 is a wasteful number, since it uses less digits than its factorization.

42971194292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826369138 (or 826369136 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The spelling of 42971194292 in words is "forty-two billion, nine hundred seventy-one million, one hundred ninety-four thousand, two hundred ninety-two".

Divisors: 1 2 4 13 26 52 826369121 1652738242 3305476484 10742798573 21485597146 42971194292