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398053376 = 212713883
BaseRepresentation
bin10111101110011…
…101000000000000
31000202000012120122
4113232131000000
51303400202001
6103255355412
712602253320
oct2756350000
91022005518
10398053376
11194766436
12b1382b68
136460c556
143ac19280
1524e2bb1b
hex17b9d000

398053376 has 52 divisors (see below), whose sum is σ = 909790752. Its totient is φ = 170582016.

The previous prime is 398053349. The next prime is 398053417. The reversal of 398053376 is 673350893.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21731 + ... + 35613.

It is an arithmetic number, because the mean of its divisors is an integer number (17495976).

Almost surely, 2398053376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 398053376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (454895376).

398053376 is an abundant number, since it is smaller than the sum of its proper divisors (511737376).

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

398053376 is an equidigital number, since it uses as much as digits as its factorization.

398053376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13914 (or 13892 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 44.

The square root of 398053376 is about 19951.2750469738. The cubic root of 398053376 is about 735.6091182155.

The spelling of 398053376 in words is "three hundred ninety-eight million, fifty-three thousand, three hundred seventy-six".

Divisors: 1 2 4 7 8 14 16 28 32 56 64 112 128 224 256 448 512 896 1024 1792 2048 3584 4096 7168 13883 14336 27766 28672 55532 97181 111064 194362 222128 388724 444256 777448 888512 1554896 1777024 3109792 3554048 6219584 7108096 12439168 14216192 24878336 28432384 49756672 56864768 99513344 199026688 398053376