Search a number
-
+
3920302031 = 22739174409
BaseRepresentation
bin1110100110101011…
…0000111111001111
3101010012201222101112
43221222300333033
531012044131111
61445001402235
7166102005662
oct35152607717
911105658345
103920302031
1117319a9a38
12914a9937b
134a6268959
142929296d9
1517e280e8b
hexe9ab0fcf

3920302031 has 8 divisors (see below), whose sum is σ = 3939470640. Its totient is φ = 3901150528.

The previous prime is 3920302021. The next prime is 3920302063. The reversal of 3920302031 is 1302030293.

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 3920302031 - 218 = 3920039887 is a prime.

It is a super-2 number, since 2×39203020312 = 30737536028525449922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3920301988 and 3920302006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3920302021) 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, 886955 + ... + 891363.

It is an arithmetic number, because the mean of its divisors is an integer number (492433830).

Almost surely, 23920302031 is an apocalyptic number.

3920302031 is a deficient number, since it is larger than the sum of its proper divisors (19168609).

3920302031 is a wasteful number, since it uses less digits than its factorization.

3920302031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8553.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 3920302031 is about 62612.3153301329. The cubic root of 3920302031 is about 1576.7875270303.

The spelling of 3920302031 in words is "three billion, nine hundred twenty million, three hundred two thousand, thirty-one".

Divisors: 1 227 3917 4409 889159 1000843 17270053 3920302031