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3968020069 = 13983310511
BaseRepresentation
bin1110110010000011…
…0010111001100101
3101020112112022020021
43230200302321211
531111303120234
61453424235141
7200221420426
oct35440627145
911215468207
103968020069
111756931232
12928a6bab1
134b3105490
14298dcb64d
151835599b4
hexec832e65

3968020069 has 8 divisors (see below), whose sum is σ = 4277613312. Its totient is φ = 3659049840.

The previous prime is 3968020039. The next prime is 3968020109. The reversal of 3968020069 is 9600208693.

3968020069 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3968020069 - 27 = 3968019941 is a prime.

It is a super-2 number, since 2×39680200692 = 31490366535973529522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3968020009) 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, 142477 + ... + 168034.

It is an arithmetic number, because the mean of its divisors is an integer number (534701664).

Almost surely, 23968020069 is an apocalyptic number.

It is an amenable number.

3968020069 is a deficient number, since it is larger than the sum of its proper divisors (309593243).

3968020069 is a wasteful number, since it uses less digits than its factorization.

3968020069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311507.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 3968020069 is about 62992.2222897399. Note that the first 4 decimals coincide. The cubic root of 3968020069 is about 1583.1593129176.

The spelling of 3968020069 in words is "three billion, nine hundred sixty-eight million, twenty thousand, sixty-nine".

Divisors: 1 13 983 12779 310511 4036643 305232313 3968020069