Search a number
-
+
7689248928 = 2532193145329
BaseRepresentation
bin1110010100101000…
…01010000010100000
3201211212200022120100
413022110022002200
5111221421431203
63310555142400
7361355352234
oct71224120240
921755608510
107689248928
113296420589
1215a7144a00
1395704c94a
1452d2d65c4
153000b5ea3
hex1ca50a0a0

7689248928 has 144 divisors (see below), whose sum is σ = 23760172800. Its totient is φ = 2349803520.

The previous prime is 7689248911. The next prime is 7689248929. The reversal of 7689248928 is 8298429867.

7689248928 is a `hidden beast` number, since 7 + 68 + 92 + 489 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is not an unprimeable number, because it can be changed into a prime (7689248929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146968 + ... + 192296.

It is an arithmetic number, because the mean of its divisors is an integer number (165001200).

Almost surely, 27689248928 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 7689248928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11880086400).

7689248928 is an abundant number, since it is smaller than the sum of its proper divisors (16070923872).

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

7689248928 is a wasteful number, since it uses less digits than its factorization.

7689248928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45395 (or 45384 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 63.

The square root of 7689248928 is about 87688.3625574112. The cubic root of 7689248928 is about 1973.7613493082.

The spelling of 7689248928 in words is "seven billion, six hundred eighty-nine million, two hundred forty-eight thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 31 32 36 38 48 57 62 72 76 93 96 114 124 144 152 171 186 228 248 279 288 304 342 372 456 496 558 589 608 684 744 912 992 1116 1178 1368 1488 1767 1824 2232 2356 2736 2976 3534 4464 4712 5301 5472 7068 8928 9424 10602 14136 18848 21204 28272 42408 45329 56544 84816 90658 135987 169632 181316 271974 362632 407961 543948 725264 815922 861251 1087896 1405199 1450528 1631844 1722502 2175792 2583753 2810398 3263688 3445004 4215597 4351584 5167506 5620796 6527376 6890008 7751259 8431194 10335012 11241592 12646791 13054752 13780016 15502518 16862388 20670024 22483184 25293582 26698781 27560032 31005036 33724776 41340048 44966368 50587164 53397562 62010072 67449552 80096343 82680096 101174328 106795124 124020144 134899104 160192686 202348656 213590248 240289029 248040288 320385372 404697312 427180496 480578058 640770744 854360992 961156116 1281541488 1922312232 2563082976 3844624464 7689248928