Search a number
-
+
8214198039 = 331631866439
BaseRepresentation
bin1111010011001101…
…01011011100010111
3210012110110111101000
413221212223130113
5113310313314124
63435030434343
7410361350145
oct75146533427
923173414330
108214198039
113535778623
121712b029b3
13a0ba2ba18
1457cd04595
1533120b6c9
hex1e99ab717

8214198039 has 16 divisors (see below), whose sum is σ = 12243846400. Its totient is φ = 5442533208.

The previous prime is 8214198017. The next prime is 8214198049. The reversal of 8214198039 is 9308914128.

It is not a de Polignac number, because 8214198039 - 25 = 8214198007 is a prime.

It is a super-2 number, since 2×82141980392 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8214197985 and 8214198003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8214198049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928819 + ... + 937620.

It is an arithmetic number, because the mean of its divisors is an integer number (765240400).

Almost surely, 28214198039 is an apocalyptic number.

8214198039 is a deficient number, since it is larger than the sum of its proper divisors (4029648361).

8214198039 is a wasteful number, since it uses less digits than its factorization.

8214198039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866611 (or 1866605 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 8214198039 is about 90632.2130315706. The cubic root of 8214198039 is about 2017.6928564551.

The spelling of 8214198039 in words is "eight billion, two hundred fourteen million, one hundred ninety-eight thousand, thirty-nine".

Divisors: 1 3 9 27 163 489 1467 4401 1866439 5599317 16797951 50393853 304229557 912688671 2738066013 8214198039