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38829679707 = 37213197913537
BaseRepresentation
bin100100001010011011…
…011110010001011011
310201020002220002212110
4210022123132101123
51114010344222312
625501010443403
72543143555200
oct441233362133
9121202802773
1038829679707
1115516384095
127637b93563
13387a780350
141c44da5ca7
151023db043c
hex90a6de45b

38829679707 has 96 divisors (see below), whose sum is σ = 69141273600. Its totient is φ = 19156580352.

The previous prime is 38829679699. The next prime is 38829679729. The reversal of 38829679707 is 70797692883.

38829679707 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38829679707 - 23 = 38829679699 is a prime.

It is a super-2 number, since 2×388296797072 (a number of 22 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38829679307) 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, 2861643 + ... + 2875179.

It is an arithmetic number, because the mean of its divisors is an integer number (720221600).

Almost surely, 238829679707 is an apocalyptic number.

38829679707 is a deficient number, since it is larger than the sum of its proper divisors (30311593893).

38829679707 is a wasteful number, since it uses less digits than its factorization.

38829679707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13665 (or 13658 counting only the distinct ones).

The product of its (nonzero) digits is 64012032, while the sum is 66.

The spelling of 38829679707 in words is "thirty-eight billion, eight hundred twenty-nine million, six hundred seventy-nine thousand, seven hundred seven".

Divisors: 1 3 7 13 19 21 39 49 57 79 91 133 147 237 247 273 399 553 637 741 931 1027 1501 1659 1729 1911 2793 3081 3871 4503 5187 7189 10507 11613 12103 13537 19513 21567 31521 36309 40611 50323 58539 73549 94759 136591 150969 175981 220647 257203 284277 409773 527943 663313 771609 956137 1069423 1231867 1800421 1989939 2868411 3208269 3343639 3695601 5401263 7485961 8623069 10030917 12602947 13902499 20319037 22457883 23405473 25869207 37808841 41707497 52401727 60957111 70216419 97317493 142233259 157205181 163838311 264147481 291952479 426699777 491514933 681222451 792442443 995632813 1849032367 2043667353 2986898439 5547097101 12943226569 38829679707