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8397523044 = 223616972
BaseRepresentation
bin1111101001000100…
…00000100001100100
3210200020102101000000
413310202000201210
5114144231214134
63505140021300
7415045524321
oct76442004144
923606371000
108397523044
11361a201399
121764391830
13a3a9c8161
145993c5b48
1534236ee99
hex1f4880864

8397523044 has 63 divisors (see below), whose sum is σ = 22046410057. Its totient is φ = 2797524864.

The previous prime is 8397523037. The next prime is 8397523063. The reversal of 8397523044 is 4403257938.

The square root of 8397523044 is 91638.

It is a perfect power (a square), and thus also a powerful number.

8397523044 is a `hidden beast` number, since 83 + 9 + 7 + 523 + 0 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8083808100 + 313714944 = 89910^2 + 17712^2 .

It is a super-2 number, since 2×83975230442 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 4947604 + ... + 4949300.

Almost surely, 28397523044 is an apocalyptic number.

8397523044 is the 91638-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8397523044

8397523044 is an abundant number, since it is smaller than the sum of its proper divisors (13648887013).

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

8397523044 is an frugal number, since it uses more digits than its factorization.

8397523044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3416 (or 1702 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The cubic root of 8397523044 is about 2032.5928869193.

It can be divided in two parts, 8397 and 523044, that added together give a 12-th power (531441 = 312).

The spelling of 8397523044 in words is "eight billion, three hundred ninety-seven million, five hundred twenty-three thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 729 972 1458 1697 2916 3394 5091 6788 10182 15273 20364 30546 45819 61092 91638 137457 183276 274914 412371 549828 824742 1237113 1649484 2474226 2879809 4948452 5759618 8639427 11519236 17278854 25918281 34557708 51836562 77754843 103673124 155509686 233264529 311019372 466529058 699793587 933058116 1399587174 2099380761 2799174348 4198761522 8397523044