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7668616224 = 2531713273541
BaseRepresentation
bin1110010010001010…
…11100110000100000
3201210102212001211010
413021011130300200
5111201131204344
63304541020520
7361015106463
oct71105346040
921712761733
107668616224
113285808965
1215a0254740
139529a7549
1452a6852da
152ed38c8b9
hex1c915cc20

7668616224 has 96 divisors (see below), whose sum is σ = 21336327936. Its totient is φ = 2403348480.

The previous prime is 7668616217. The next prime is 7668616243. The reversal of 7668616224 is 4226168667.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2163894 + ... + 2167434.

It is an arithmetic number, because the mean of its divisors is an integer number (222253416).

Almost surely, 27668616224 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 7668616224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10668163968).

7668616224 is an abundant number, since it is smaller than the sum of its proper divisors (13667711712).

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

7668616224 is a wasteful number, since it uses less digits than its factorization.

7668616224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4898 (or 4890 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 48.

The square root of 7668616224 is about 87570.6356263331. The cubic root of 7668616224 is about 1971.9943577745.

The spelling of 7668616224 in words is "seven billion, six hundred sixty-eight million, six hundred sixteen thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 12 16 17 24 32 34 48 51 68 96 102 136 204 272 408 544 816 1327 1632 2654 3541 3981 5308 7082 7962 10616 10623 14164 15924 21232 21246 22559 28328 31848 42464 42492 45118 56656 60197 63696 67677 84984 90236 113312 120394 127392 135354 169968 180472 180591 240788 270708 339936 360944 361182 481576 541416 721888 722364 963152 1082832 1444728 1926304 2165664 2889456 4698907 5778912 9397814 14096721 18795628 28193442 37591256 56386884 75182512 79881419 112773768 150365024 159762838 225547536 239644257 319525676 451095072 479288514 639051352 958577028 1278102704 1917154056 2556205408 3834308112 7668616224