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2858238100 = 225228582381
BaseRepresentation
bin1010101001011101…
…0100000010010100
321101012021112120101
42222113110002110
521323202104400
61151341543444
7130554423454
oct25227240224
97335245511
102858238100
111237445653
12679274b84
1336720b263
141d1863d64
1511ade056a
hexaa5d4094

2858238100 has 18 divisors (see below), whose sum is σ = 6202376894. Its totient is φ = 1143295200.

The previous prime is 2858238029. The next prime is 2858238107. The reversal of 2858238100 is 18328582.

It can be written as a sum of positive squares in 3 ways, for example, as 718990596 + 2139247504 = 26814^2 + 46252^2 .

It is a super-2 number, since 2×28582381002 = 16339050072583220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2858238100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2858238107) 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 5 ways as a sum of consecutive naturals, for example, 14291091 + ... + 14291290.

Almost surely, 22858238100 is an apocalyptic number.

2858238100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2858238100 is an abundant number, since it is smaller than the sum of its proper divisors (3344138794).

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

2858238100 is a wasteful number, since it uses less digits than its factorization.

2858238100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28582395 (or 28582388 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 2858238100 is about 53462.4924596675. The cubic root of 2858238100 is about 1419.1647041426.

The spelling of 2858238100 in words is "two billion, eight hundred fifty-eight million, two hundred thirty-eight thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 28582381 57164762 114329524 142911905 285823810 571647620 714559525 1429119050 2858238100