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2689734885 = 35232419809
BaseRepresentation
bin1010000001010010…
…0001100011100101
320221110012200121120
42200110201203211
521002033004020
61122522204153
7123440240445
oct24024414345
96843180546
102689734885
1111603156a2
12630953659
1333b331306
141b7320125
1510b208740
hexa05218e5

2689734885 has 48 divisors (see below), whose sum is σ = 4515134400. Its totient is φ = 1367187712.

The previous prime is 2689734877. The next prime is 2689734889. The reversal of 2689734885 is 5884379862.

It is not a de Polignac number, because 2689734885 - 23 = 2689734877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689734889) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3324361 + ... + 3325169.

It is an arithmetic number, because the mean of its divisors is an integer number (94065300).

Almost surely, 22689734885 is an apocalyptic number.

It is an amenable number.

2689734885 is a deficient number, since it is larger than the sum of its proper divisors (1825399515).

2689734885 is a wasteful number, since it uses less digits than its factorization.

2689734885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282 (or 1259 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 60.

The square root of 2689734885 is about 51862.6540489397. The cubic root of 2689734885 is about 1390.7097258886.

The spelling of 2689734885 in words is "two billion, six hundred eighty-nine million, seven hundred thirty-four thousand, eight hundred eighty-five".

Divisors: 1 3 5 15 23 69 115 345 419 529 809 1257 1587 2095 2427 2645 4045 6285 7935 9637 12135 18607 28911 48185 55821 93035 144555 221651 279105 338971 427961 664953 1016913 1108255 1283883 1694855 2139805 3324765 5084565 6419415 7796333 23388999 38981665 116944995 179315659 537946977 896578295 2689734885