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38898243843 = 3331259315107
BaseRepresentation
bin100100001110100001…
…000001100100000011
310201101212220112011220
4210032201001210003
51114130422300333
625511500210123
72544635421504
oct441641014403
9121355815156
1038898243843
1115551054368
127656b39943
13388ba38444
141c50132bab
151029e058b3
hex90e841903

38898243843 has 16 divisors (see below), whose sum is σ = 52044521856. Its totient is φ = 25842136320.

The previous prime is 38898243817. The next prime is 38898243877. The reversal of 38898243843 is 34834289883.

It is not a de Polignac number, because 38898243843 - 210 = 38898242819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38898243343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2567296 + ... + 2582402.

It is an arithmetic number, because the mean of its divisors is an integer number (3252782616).

Almost surely, 238898243843 is an apocalyptic number.

38898243843 is a deficient number, since it is larger than the sum of its proper divisors (13146278013).

38898243843 is a wasteful number, since it uses less digits than its factorization.

38898243843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18034.

The product of its digits is 31850496, while the sum is 60.

The spelling of 38898243843 in words is "thirty-eight billion, eight hundred ninety-eight million, two hundred forty-three thousand, eight hundred forty-three".

Divisors: 1 3 331 993 2593 7779 15107 45321 858283 2574849 5000417 15001251 39172451 117517353 12966081281 38898243843