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38408994 = 232131953163
BaseRepresentation
bin1001001010000…
…1001100100010
32200021101020100
42102201030202
534313041434
63451123230
7644320401
oct222411442
980241210
1038408994
111a754278
1210a43516
137c5a620
14515b638
15358a699
hex24a1322

38408994 has 96 divisors (see below), whose sum is σ = 96707520. Its totient is φ = 10917504.

The previous prime is 38408977. The next prime is 38409029. The reversal of 38408994 is 49980483.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 235557 + ... + 235719.

It is an arithmetic number, because the mean of its divisors is an integer number (1007370).

Almost surely, 238408994 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38408994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48353760).

38408994 is an abundant number, since it is smaller than the sum of its proper divisors (58298526).

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

38408994 is a wasteful number, since it uses less digits than its factorization.

38408994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 253 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 38408994 is about 6197.4990116982. The cubic root of 38408994 is about 337.3994037638.

The spelling of 38408994 in words is "thirty-eight million, four hundred eight thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 9 13 18 19 26 38 39 53 57 78 106 114 117 159 163 171 234 247 318 326 342 477 489 494 689 741 954 978 1007 1378 1467 1482 2014 2067 2119 2223 2934 3021 3097 4134 4238 4446 6042 6194 6201 6357 8639 9063 9291 12402 12714 13091 17278 18126 18582 19071 25917 26182 27873 38142 39273 40261 51834 55746 77751 78546 80522 112307 117819 120783 155502 164141 224614 235638 241566 328282 336921 362349 492423 673842 724698 984846 1010763 1477269 2021526 2133833 2954538 4267666 6401499 12802998 19204497 38408994