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38782494630 = 2345119074799
BaseRepresentation
bin100100000111100111…
…011110011110100110
310201002211002212010000
4210013213132132212
51113411304312010
625452203242130
72542031523315
oct440747363646
9121084085100
1038782494630
11154a1786260
127624219346
133870a6c299
141c3ca0227c
15101eb8e7c0
hex9079de7a6

38782494630 has 160 divisors (see below), whose sum is σ = 113911142400. Its totient is φ = 9389494080.

The previous prime is 38782494563. The next prime is 38782494631. The reversal of 38782494630 is 3649428783.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38782494631) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 8078971 + ... + 8083769.

It is an arithmetic number, because the mean of its divisors is an integer number (711944640).

Almost surely, 238782494630 is an apocalyptic number.

38782494630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38782494630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56955571200).

38782494630 is an abundant number, since it is smaller than the sum of its proper divisors (75128647770).

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

38782494630 is a wasteful number, since it uses less digits than its factorization.

38782494630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5736 (or 5727 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 54.

The spelling of 38782494630 in words is "thirty-eight billion, seven hundred eighty-two million, four hundred ninety-four thousand, six hundred thirty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 27 30 33 45 54 55 66 81 90 99 110 135 162 165 198 270 297 330 405 495 594 810 891 907 990 1485 1782 1814 2721 2970 4455 4535 4799 5442 8163 8910 9070 9598 9977 13605 14397 16326 19954 23995 24489 27210 28794 29931 40815 43191 47990 48978 49885 52789 59862 71985 73467 81630 86382 89793 99770 105578 122445 129573 143970 146934 149655 158367 179586 215955 244890 259146 263945 269379 299310 316734 367335 388719 431910 448965 475101 527890 538758 647865 734670 777438 791835 808137 897930 950202 1295730 1346895 1425303 1583670 1616274 1943595 2375505 2693790 2850606 3887190 4040685 4275909 4352693 4751010 7126515 8081370 8551818 8705386 13058079 14253030 21379545 21763465 26116158 39174237 42759090 43526930 47879623 65290395 78348474 95759246 117522711 130580790 143638869 195871185 235045422 239398115 287277738 352568133 391742370 430916607 478796230 587613555 705136266 718194345 861833214 1175227110 1292749821 1436388690 1762840665 2154583035 2585499642 3525681330 3878249463 4309166070 6463749105 7756498926 12927498210 19391247315 38782494630