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18376338190 = 257317893541
BaseRepresentation
bin10001000111010100…
…001010101100001110
31202102200022200222011
4101013110022230032
5300113320310230
612235244411434
71220245204000
oct210724125416
952380280864
1018376338190
11787aa66961
12368a246b7a
13196b1a8ac2
14c647d2370
15728445e2a
hex44750ab0e

18376338190 has 128 divisors (see below), whose sum is σ = 41313888000. Its totient is φ = 5861560320.

The previous prime is 18376338163. The next prime is 18376338199. The reversal of 18376338190 is 9183367381.

It is a super-2 number, since 2×183763381902 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18376338199) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5187820 + ... + 5191360.

It is an arithmetic number, because the mean of its divisors is an integer number (322764750).

Almost surely, 218376338190 is an apocalyptic number.

18376338190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18376338190 is an abundant number, since it is smaller than the sum of its proper divisors (22937549810).

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

18376338190 is a wasteful number, since it uses less digits than its factorization.

18376338190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3675 (or 3661 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 18376338190 in words is "eighteen billion, three hundred seventy-six million, three hundred thirty-eight thousand, one hundred ninety".

Divisors: 1 2 5 7 10 14 17 34 35 49 70 85 89 98 119 170 178 238 245 343 445 490 595 623 686 833 890 1190 1246 1513 1666 1715 3026 3115 3430 3541 4165 4361 5831 6230 7082 7565 8330 8722 10591 11662 15130 17705 21182 21805 24787 29155 30527 35410 43610 49574 52955 58310 60197 61054 74137 105910 120394 123935 148274 152635 173509 247870 300985 305270 315149 347018 370685 421379 518959 601970 630298 741370 842758 867545 1037918 1214563 1575745 1735090 2106895 2206043 2429126 2594795 2949653 3151490 4213790 4412086 5189590 5357533 5899306 6072815 10715066 11030215 12145630 14748265 15442301 20647571 22060430 26787665 29496530 30884602 37502731 41295142 53575330 75005462 77211505 103237855 108096107 154423010 187513655 206475710 216192214 262519117 375027310 525038234 540480535 1080961070 1312595585 1837633819 2625191170 3675267638 9188169095 18376338190