Search a number
-
+
67690067020 = 2254797065769
BaseRepresentation
bin111111000010101001…
…000111010001001100
320110201102210200112021
4333002221013101030
52102112124121040
651032453015524
74614265035112
oct770251072114
9213642720467
1067690067020
1126786307254
12111513245a4
1364c9a052c4
1433c1d1dab2
151b6292b24a
hexfc2a4744c

67690067020 has 24 divisors (see below), whose sum is σ = 142445923200. Its totient is φ = 27019496832.

The previous prime is 67690067009. The next prime is 67690067041. The reversal of 67690067020 is 2076009676.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3523305 + ... + 3542464.

It is an arithmetic number, because the mean of its divisors is an integer number (5935246800).

Almost surely, 267690067020 is an apocalyptic number.

It is an amenable number.

67690067020 is an abundant number, since it is smaller than the sum of its proper divisors (74755856180).

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

67690067020 is a wasteful number, since it uses less digits than its factorization.

67690067020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7066257 (or 7066255 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 43.

The spelling of 67690067020 in words is "sixty-seven billion, six hundred ninety million, sixty-seven thousand, twenty".

Divisors: 1 2 4 5 10 20 479 958 1916 2395 4790 9580 7065769 14131538 28263076 35328845 70657690 141315380 3384503351 6769006702 13538013404 16922516755 33845033510 67690067020