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2687468368 = 2413311632557
BaseRepresentation
bin1010000000101111…
…1000001101010000
320221021221112112111
42200023320031100
521000442441433
61122401435104
7123412050514
oct24013701520
96837845474
102687468368
11115a007842
1263003ba94
1333aa19790
141b6cd0144
1510ae0bdcd
hexa02f8350

2687468368 has 80 divisors (see below), whose sum is σ = 5826182656. Its totient is φ = 1192527360.

The previous prime is 2687468353. The next prime is 2687468383. The reversal of 2687468368 is 8638647862.

It is an interprime number because it is at equal distance from previous prime (2687468353) and next prime (2687468383).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049746 + ... + 1052302.

Almost surely, 22687468368 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 2687468368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2913091328).

2687468368 is an abundant number, since it is smaller than the sum of its proper divisors (3138714288).

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

2687468368 is a wasteful number, since it uses less digits than its factorization.

2687468368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2772 (or 2766 counting only the distinct ones).

The product of its digits is 18579456, while the sum is 58.

The square root of 2687468368 is about 51840.7982963226. The cubic root of 2687468368 is about 1390.3189868811.

The spelling of 2687468368 in words is "two billion, six hundred eighty-seven million, four hundred sixty-eight thousand, three hundred sixty-eight".

Divisors: 1 2 4 8 13 16 26 31 52 62 104 124 163 208 248 326 403 496 652 806 1304 1612 2119 2557 2608 3224 4238 5053 5114 6448 8476 10106 10228 16952 20212 20456 33241 33904 40424 40912 65689 66482 79267 80848 131378 132964 158534 262756 265928 317068 416791 525512 531856 634136 833582 1030471 1051024 1268272 1667164 2060942 3334328 4121884 5418283 6668656 8243768 10836566 12920521 16487536 21673132 25841042 43346264 51682084 86692528 103364168 167966773 206728336 335933546 671867092 1343734184 2687468368