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67940922 = 2371924481
BaseRepresentation
bin1000000110010…
…11001000111010
311201211202102110
410003023020322
5114343102142
610424113150
71453326330
oct403131072
9151752373
1067940922
1135395025
121a9057b6
13110ca53a
149047b50
155e7099c
hex40cb23a

67940922 has 48 divisors (see below), whose sum is σ = 163933632. Its totient is φ = 18385920.

The previous prime is 67940921. The next prime is 67940927. The reversal of 67940922 is 22904976.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (67940921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12922 + ... + 17402.

It is an arithmetic number, because the mean of its divisors is an integer number (3415284).

Almost surely, 267940922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67940922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81966816).

67940922 is an abundant number, since it is smaller than the sum of its proper divisors (95992710).

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

67940922 is a wasteful number, since it uses less digits than its factorization.

67940922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531 (or 4512 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 67940922 is about 8242.6283429498. The cubic root of 67940922 is about 408.0472720121.

The spelling of 67940922 in words is "sixty-seven million, nine hundred forty thousand, nine hundred twenty-two".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 114 133 266 361 399 722 798 1083 2166 2527 4481 5054 7581 8962 13443 15162 26886 31367 62734 85139 94101 170278 188202 255417 510834 595973 1191946 1617641 1787919 3235282 3575838 4852923 9705846 11323487 22646974 33970461 67940922