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30055502800 = 245275138757
BaseRepresentation
bin11011111111011100…
…101001001111010000
32212120121201201220101
4123333130221033100
5443023202042200
621450213422144
72112542362411
oct337734511720
985517651811
1030055502800
1111823603114
1259a963a954
132aaca290ab
141651975808
15bad93e26a
hex6ff7293d0

30055502800 has 30 divisors (see below), whose sum is σ = 72208346438. Its totient is φ = 12022200960.

The previous prime is 30055502779. The next prime is 30055502809. The reversal of 30055502800 is 820555003.

It can be written as a sum of positive squares in 3 ways, for example, as 3109623696 + 26945879104 = 55764^2 + 164152^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30055502809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37568979 + ... + 37569778.

Almost surely, 230055502800 is an apocalyptic number.

It is an amenable number.

30055502800 is an abundant number, since it is smaller than the sum of its proper divisors (42152843638).

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

30055502800 is a wasteful number, since it uses less digits than its factorization.

30055502800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75138775 (or 75138764 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The spelling of 30055502800 in words is "thirty billion, fifty-five million, five hundred two thousand, eight hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 400 75138757 150277514 300555028 375693785 601110056 751387570 1202220112 1502775140 1878468925 3005550280 3756937850 6011100560 7513875700 15027751400 30055502800