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8368393852 = 2272134916689
BaseRepresentation
bin1111100101100101…
…11000111001111100
3210121012121110021001
413302302320321330
5114114302100402
63502215420044
7414243113500
oct76262707174
923535543231
108368393852
113604816185
121756684624
13a34969650
145955a2300
1533ea19187
hex1f2cb8e7c

8368393852 has 72 divisors (see below), whose sum is σ = 18386207280. Its totient is φ = 3303336960.

The previous prime is 8368393843. The next prime is 8368393861. The reversal of 8368393852 is 2583938638.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8368393843) and next prime (8368393861).

It is a junction number, because it is equal to n+sod(n) for n = 8368393793 and 8368393802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1247724 + ... + 1254412.

It is an arithmetic number, because the mean of its divisors is an integer number (255363990).

Almost surely, 28368393852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8368393852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9193103640).

8368393852 is an abundant number, since it is smaller than the sum of its proper divisors (10017813428).

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

8368393852 is a wasteful number, since it uses less digits than its factorization.

8368393852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7211 (or 7202 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 55.

The square root of 8368393852 is about 91478.9257260928. The cubic root of 8368393852 is about 2030.2399557808.

The spelling of 8368393852 in words is "eight billion, three hundred sixty-eight million, three hundred ninety-three thousand, eight hundred fifty-two".

Divisors: 1 2 4 7 13 14 26 28 49 52 91 98 182 196 364 491 637 982 1274 1964 2548 3437 6383 6689 6874 12766 13378 13748 24059 25532 26756 44681 46823 48118 86957 89362 93646 96236 173914 178724 187292 312767 327761 347828 608699 625534 655522 1217398 1251068 1311044 2434796 3284299 4260893 6568598 8521786 13137196 17043572 22990093 42695887 45980186 85391774 91960372 160930651 170783548 298871209 321861302 597742418 643722604 1195484836 2092098463 4184196926 8368393852