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38959383505 = 577315248291
BaseRepresentation
bin100100010010001010…
…010000001111010001
310201120010221202000211
4210102022100033101
51114242100233010
625521522444121
72546310203320
oct442212201721
9121503852024
1038959383505
1115582613509
127673503641
13389b5c4063
141c582ca0b7
15103048108a
hex9122903d1

38959383505 has 16 divisors (see below), whose sum is σ = 54161933184. Its totient is φ = 26349045120.

The previous prime is 38959383499. The next prime is 38959383509. The reversal of 38959383505 is 50538395983.

It is a happy number.

It is not a de Polignac number, because 38959383505 - 217 = 38959252433 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38959383505.

It is not an unprimeable number, because it can be changed into a prime (38959383509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7621591 + ... + 7626700.

It is an arithmetic number, because the mean of its divisors is an integer number (3385120824).

Almost surely, 238959383505 is an apocalyptic number.

38959383505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

38959383505 is a deficient number, since it is larger than the sum of its proper divisors (15202549679).

38959383505 is a wasteful number, since it uses less digits than its factorization.

38959383505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15248376.

The product of its (nonzero) digits is 17496000, while the sum is 58.

The spelling of 38959383505 in words is "thirty-eight billion, nine hundred fifty-nine million, three hundred eighty-three thousand, five hundred five".

Divisors: 1 5 7 35 73 365 511 2555 15248291 76241455 106738037 533690185 1113125243 5565626215 7791876701 38959383505