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2168688150 = 2325229166183
BaseRepresentation
bin1000000101000011…
…1000111000010110
312121010202202212100
42001100320320112
513420141010100
6555110302530
7104512354656
oct20120707026
95533682770
102168688150
11a13193562
12506357a46
132873ba535
1416804a366
15ca5d4400
hex81438e16

2168688150 has 72 divisors (see below), whose sum is σ = 6027493680. Its totient is φ = 558371520.

The previous prime is 2168688133. The next prime is 2168688199. The reversal of 2168688150 is 518868612.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 2168688096 and 2168688105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 70042 + ... + 96141.

It is an arithmetic number, because the mean of its divisors is an integer number (83715190).

Almost surely, 22168688150 is an apocalyptic number.

2168688150 is an abundant number, since it is smaller than the sum of its proper divisors (3858805530).

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

2168688150 is a wasteful number, since it uses less digits than its factorization.

2168688150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166230 (or 166222 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 2168688150 is about 46569.1759643651. The cubic root of 2168688150 is about 1294.3916483891.

The spelling of 2168688150 in words is "two billion, one hundred sixty-eight million, six hundred eighty-eight thousand, one hundred fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 29 30 45 50 58 75 87 90 145 150 174 225 261 290 435 450 522 725 870 1305 1450 2175 2610 4350 6525 13050 166183 332366 498549 830915 997098 1495647 1661830 2492745 2991294 4154575 4819307 4985490 7478235 8309150 9638614 12463725 14457921 14956470 24096535 24927450 28915842 37391175 43373763 48193070 72289605 74782350 86747526 120482675 144579210 216868815 240965350 361448025 433737630 722896050 1084344075 2168688150