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67731042 = 2347461521
BaseRepresentation
bin1000000100101…
…11111001100010
311201110002112010
410002113321202
5114314343132
610415413350
71451463411
oct402277142
9151402463
1067731042
1135261375
121a824256
1311055b52
148dd1478
155e2d6cc
hex4097e62

67731042 has 32 divisors (see below), whose sum is σ = 138910464. Its totient is φ = 22006400.

The previous prime is 67731031. The next prime is 67731073. The reversal of 67731042 is 24013776.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129742 + ... + 130262.

It is an arithmetic number, because the mean of its divisors is an integer number (4340952).

Almost surely, 267731042 is an apocalyptic number.

67731042 is an abundant number, since it is smaller than the sum of its proper divisors (71179422).

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

67731042 is a wasteful number, since it uses less digits than its factorization.

67731042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 67731042 is about 8229.8871195175. The cubic root of 67731042 is about 407.6266649286.

The spelling of 67731042 in words is "sixty-seven million, seven hundred thirty-one thousand, forty-two".

Divisors: 1 2 3 6 47 94 141 282 461 521 922 1042 1383 1563 2766 3126 21667 24487 43334 48974 65001 73461 130002 146922 240181 480362 720543 1441086 11288507 22577014 33865521 67731042