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38093744689 = 721113191012833
BaseRepresentation
bin100011011110100100…
…000110101000110001
310122022211002201210221
4203132210012220301
51111003444312224
625300001053041
72515666326100
oct433644065061
9118284081727
1038093744689
1115178a20230
127471627181
13379116b740
141bb5356037
15ece4906e4
hex8de906a31

38093744689 has 96 divisors (see below), whose sum is σ = 55362303360. Its totient is φ = 25691904000.

The previous prime is 38093744681. The next prime is 38093744699. The reversal of 38093744689 is 98644739083.

It is not a de Polignac number, because 38093744689 - 23 = 38093744681 is a prime.

It is a super-2 number, since 2×380937446892 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38093744681) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13445017 + ... + 13447849.

It is an arithmetic number, because the mean of its divisors is an integer number (576690660).

Almost surely, 238093744689 is an apocalyptic number.

It is an amenable number.

38093744689 is a deficient number, since it is larger than the sum of its proper divisors (17268558671).

38093744689 is a wasteful number, since it uses less digits than its factorization.

38093744689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991 (or 2984 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 61.

The spelling of 38093744689 in words is "thirty-eight billion, ninety-three million, seven hundred forty-four thousand, six hundred eighty-nine".

Divisors: 1 7 11 13 19 49 77 91 101 133 143 209 247 539 637 707 931 1001 1111 1313 1463 1729 1919 2717 2833 4949 7007 7777 9191 10241 12103 13433 14443 19019 19831 21109 24947 31163 36829 53827 54439 64337 94031 101101 133133 138817 147763 174629 218141 257803 274417 286133 376789 405119 592097 699751 707707 1034341 1222403 1526987 1804621 1920919 2002931 2637523 2835833 3147463 3719729 4144679 4898257 5436527 7697261 13446433 14020517 19850831 22032241 26038103 29012753 34287799 38055689 40917019 53880827 59801797 70674851 154225687 182266721 266389823 286419133 377165789 418612579 494723957 777423361 2004933931 2930288053 3463067699 5441963527 38093744689