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689112371360 = 2557827743989
BaseRepresentation
bin10100000011100100100…
…11000101000010100000
32102212201102111120000202
422001302103011002200
542242300231340420
61244323541404332
7100533563336660
oct12016223050240
92385642446022
10689112371360
11246283a720a6
12b167a4096a8
134cca18c812a
14254d33261a0
1512dd3313575
hexa0724c50a0

689112371360 has 96 divisors (see below), whose sum is σ = 1862855729280. Its totient is φ = 235981089792.

The previous prime is 689112371351. The next prime is 689112371369. The reversal of 689112371360 is 63173211986.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (689112371351) and next prime (689112371369).

It is a super-2 number, since 2×6891123713602 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (689112371369) by changing a digit.

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, 554246 + ... + 1298234.

It is an arithmetic number, because the mean of its divisors is an integer number (19404747180).

Almost surely, 2689112371360 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 689112371360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (931427864640).

689112371360 is an abundant number, since it is smaller than the sum of its proper divisors (1173743357920).

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

689112371360 is a wasteful number, since it uses less digits than its factorization.

689112371360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744838 (or 744830 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 47.

The spelling of 689112371360 in words is "six hundred eighty-nine billion, one hundred twelve million, three hundred seventy-one thousand, three hundred sixty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 70 80 112 140 160 224 280 560 827 1120 1654 3308 4135 5789 6616 8270 11578 13232 16540 23156 26464 28945 33080 46312 57890 66160 92624 115780 132320 185248 231560 463120 743989 926240 1487978 2975956 3719945 5207923 5951912 7439890 10415846 11903824 14879780 20831692 23807648 26039615 29759560 41663384 52079230 59519120 83326768 104158460 119038240 166653536 208316920 416633840 615278903 833267680 1230557806 2461115612 3076394515 4306952321 4922231224 6152789030 8613904642 9844462448 12305578060 17227809284 19688924896 21534761605 24611156120 34455618568 43069523210 49222312240 68911237136 86139046420 98444624480 137822474272 172278092840 344556185680 689112371360