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2689528884 = 2237533891553
BaseRepresentation
bin1010000001001110…
…1111010000110100
320221102211020000220
42200103233100310
521002004411014
61122513534340
7123435422040
oct24023572064
96842736026
102689528884
111160194949
126308743b0
1333b28b613
141b72a9020
1510b1b76a9
hexa04ef434

2689528884 has 96 divisors (see below), whose sum is σ = 7330901760. Its totient is φ = 751515648.

The previous prime is 2689528883. The next prime is 2689528913. The reversal of 2689528884 is 4888259862.

It is a super-3 number, since 3×26895288843 (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689528883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1731052 + ... + 1732604.

It is an arithmetic number, because the mean of its divisors is an integer number (76363560).

Almost surely, 22689528884 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 2689528884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3665450880).

2689528884 is an abundant number, since it is smaller than the sum of its proper divisors (4641372876).

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

2689528884 is a wasteful number, since it uses less digits than its factorization.

2689528884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009 (or 2007 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 60.

The square root of 2689528884 is about 51860.6679864423. The cubic root of 2689528884 is about 1390.6742211616.

The spelling of 2689528884 in words is "two billion, six hundred eighty-nine million, five hundred twenty-eight thousand, eight hundred eighty-four".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 53 84 106 159 212 318 371 389 636 742 778 1113 1167 1484 1553 1556 2226 2334 2723 3106 4452 4659 4668 5446 6212 8169 9318 10871 10892 16338 18636 20617 21742 32613 32676 41234 43484 61851 65226 82309 82468 123702 130452 144319 164618 246927 247404 288638 329236 432957 493854 576163 577276 604117 865914 987708 1152326 1208234 1728489 1731828 1812351 2304652 2416468 3456978 3624702 4228819 6913956 7249404 8457638 12686457 16915276 25372914 32018201 50745828 64036402 96054603 128072804 192109206 224127407 384218412 448254814 672382221 896509628 1344764442 2689528884