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8063437816 = 2371913954521
BaseRepresentation
bin1111000001001111…
…00100101111111000
3202210221210002020001
413200213210233320
5113003220002231
63412043242344
7403551043030
oct74047445770
922727702201
108063437816
1134686671a5
1216905193b4
139b6724aa5
14566c9c8c0
15322d7bb61
hex1e09e4bf8

8063437816 has 64 divisors (see below), whose sum is σ = 18319392000. Its totient is φ = 3250264320.

The previous prime is 8063437771. The next prime is 8063437817. The reversal of 8063437816 is 6187343608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8063437817) 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, 120636 + ... + 175156.

It is an arithmetic number, because the mean of its divisors is an integer number (286240500).

Almost surely, 28063437816 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 8063437816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9159696000).

8063437816 is an abundant number, since it is smaller than the sum of its proper divisors (10255954184).

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

8063437816 is a wasteful number, since it uses less digits than its factorization.

8063437816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54692 (or 54688 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 8063437816 is about 89796.6470198080. The cubic root of 8063437816 is about 2005.2725724418.

The spelling of 8063437816 in words is "eight billion, sixty-three million, four hundred thirty-seven thousand, eight hundred sixteen".

Divisors: 1 2 4 7 8 14 19 28 38 56 76 133 139 152 266 278 532 556 973 1064 1112 1946 2641 3892 5282 7784 10564 18487 21128 36974 54521 73948 109042 147896 218084 381647 436168 763294 1035899 1526588 2071798 3053176 4143596 7251293 7578419 8287192 14502586 15156838 29005172 30313676 53048933 58010344 60627352 106097866 143989961 212195732 287979922 424391464 575959844 1007929727 1151919688 2015859454 4031718908 8063437816