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115998948 = 223213713491
BaseRepresentation
bin1101110101000…
…00000011100100
322002021100122100
412322200003210
5214143431243
615302132100
72605655232
oct672400344
9262240570
10115998948
115a5297aa
1232a21030
131b055a40
1411597952
15a2b50d3
hex6ea00e4

115998948 has 72 divisors (see below), whose sum is σ = 320314176. Its totient is φ = 35179200.

The previous prime is 115998947. The next prime is 115998991. The reversal of 115998948 is 849899511.

115998948 is a `hidden beast` number, since 1 + 1 + 599 + 8 + 9 + 48 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 115998894 and 115998903.

It is not an unprimeable number, because it can be changed into a prime (115998941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31483 + ... + 34973.

It is an arithmetic number, because the mean of its divisors is an integer number (4448808).

Almost surely, 2115998948 is an apocalyptic number.

115998948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115998948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160157088).

115998948 is an abundant number, since it is smaller than the sum of its proper divisors (204315228).

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

115998948 is a wasteful number, since it uses less digits than its factorization.

115998948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3585 (or 3580 counting only the distinct ones).

The product of its digits is 933120, while the sum is 54.

The square root of 115998948 is about 10770.2807762843. The cubic root of 115998948 is about 487.6984217917.

The spelling of 115998948 in words is "one hundred fifteen million, nine hundred ninety-eight thousand, nine hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 52 71 78 117 142 156 213 234 284 426 468 639 852 923 1278 1846 2556 2769 3491 3692 5538 6982 8307 10473 11076 13964 16614 20946 31419 33228 41892 45383 62838 90766 125676 136149 181532 247861 272298 408447 495722 544596 743583 816894 991444 1487166 1633788 2230749 2974332 3222193 4461498 6444386 8922996 9666579 12888772 19333158 28999737 38666316 57999474 115998948