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830125558 = 2415062779
BaseRepresentation
bin110001011110101…
…011010111110110
32010212000202012001
4301132223113312
53200003004213
6214212245514
726366644063
oct6136532766
92125022161
10830125558
11396647689
121b201089a
13102ca0072
147c36bc6a
154cd281dd
hex317ab5f6

830125558 has 4 divisors (see below), whose sum is σ = 1245188340. Its totient is φ = 415062778.

The previous prime is 830125553. The next prime is 830125619. The reversal of 830125558 is 855521038.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 855521038 = 2427760519.

It is a super-3 number, since 3×8301255583 (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (830125553) by changing a digit.

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 as a sum of consecutive naturals, namely, 207531388 + ... + 207531391.

It is an arithmetic number, because the mean of its divisors is an integer number (311297085).

Almost surely, 2830125558 is an apocalyptic number.

830125558 is a deficient number, since it is larger than the sum of its proper divisors (415062782).

830125558 is a wasteful number, since it uses less digits than its factorization.

830125558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415062781.

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 830125558 is about 28811.8995902735. The cubic root of 830125558 is about 939.8270233998.

The spelling of 830125558 in words is "eight hundred thirty million, one hundred twenty-five thousand, five hundred fifty-eight".

Divisors: 1 2 415062779 830125558