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38964993396 = 2237757361253
BaseRepresentation
bin100100010010011111…
…101001110101110100
310201120112111202100120
4210102133221311310
51114300014242041
625522243011540
72546405656560
oct442237516564
9121515452316
1038964993396
11155857a528a
127675369bb0
13389c809614
141c58d4a6a0
151030bdd366
hex9127e9d74

38964993396 has 48 divisors (see below), whose sum is σ = 103922066304. Its totient is φ = 11131203456.

The previous prime is 38964993377. The next prime is 38964993407. The reversal of 38964993396 is 69339946983.

It is a super-2 number, since 2×389649933962 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38964993396.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 605506 + ... + 666758.

It is an arithmetic number, because the mean of its divisors is an integer number (2165043048).

Almost surely, 238964993396 is an apocalyptic number.

It is an amenable number.

38964993396 is an abundant number, since it is smaller than the sum of its proper divisors (64957072908).

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

38964993396 is a wasteful number, since it uses less digits than its factorization.

38964993396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68840 (or 68838 counting only the distinct ones).

The product of its digits is 204073344, while the sum is 69.

The spelling of 38964993396 in words is "thirty-eight billion, nine hundred sixty-four million, nine hundred ninety-three thousand, three hundred ninety-six".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 7573 15146 22719 30292 45438 53011 61253 90876 106022 122506 159033 183759 212044 245012 318066 367518 428771 636132 735036 857542 1286313 1715084 2572626 5145252 463868969 927737938 1391606907 1855475876 2783213814 3247082783 5566427628 6494165566 9741248349 12988331132 19482496698 38964993396