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384038028 = 2232112131673
BaseRepresentation
bin10110111000111…
…111010010001100
3222202122011010200
4112320333102030
51241303204103
6102035133500
712342161253
oct2670772214
9882564120
10384038028
11187863500
12a8744290
136174314a
143900b79a
1523aae0a3
hex16e3f48c

384038028 has 108 divisors (see below), whose sum is σ = 1076779704. Its totient is φ = 115315200.

The previous prime is 384038027. The next prime is 384038033. The reversal of 384038028 is 820830483.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 384037983 and 384038001.

It is not an unprimeable number, because it can be changed into a prime (384038023) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 570300 + ... + 570972.

Almost surely, 2384038028 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 384038028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (538389852).

384038028 is an abundant number, since it is smaller than the sum of its proper divisors (692741676).

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

384038028 is a wasteful number, since it uses less digits than its factorization.

384038028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836 (or 820 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 384038028 is about 19596.8882223684. Note that the first 3 decimals coincide. The cubic root of 384038028 is about 726.8722299040.

The spelling of 384038028 in words is "three hundred eighty-four million, thirty-eight thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 121 131 132 198 242 262 363 393 396 484 524 673 726 786 1089 1179 1346 1441 1452 1572 2019 2178 2358 2692 2882 4038 4323 4356 4716 5764 6057 7403 8076 8646 12114 12969 14806 15851 17292 22209 24228 25938 29612 31702 44418 47553 51876 63404 66627 81433 88163 88836 95106 133254 142659 162866 176326 190212 244299 264489 266508 285318 325732 352652 488598 528978 570636 732897 793467 969793 977196 1057956 1465794 1586934 1939586 2909379 2931588 3173868 3879172 5818758 8728137 10667723 11637516 17456274 21335446 32003169 34912548 42670892 64006338 96009507 128012676 192019014 384038028