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30207722900 = 2252302077229
BaseRepresentation
bin11100001000100001…
…010100010110010100
32212222020011022121212
4130020201110112110
5443331134113100
621513252200552
72116401256655
oct341041242624
985866138555
1030207722900
11118a1521353
125a30609158
132b05424664
141667c7b52c
15bbbeab635
hex708854594

30207722900 has 18 divisors (see below), whose sum is σ = 65550758910. Its totient is φ = 12083089120.

The previous prime is 30207722899. The next prime is 30207722903. The reversal of 30207722900 is 922770203.

It can be written as a sum of positive squares in 3 ways, for example, as 9193741456 + 21013981444 = 95884^2 + 144962^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30207722903) 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, 151038515 + ... + 151038714.

Almost surely, 230207722900 is an apocalyptic number.

It is an amenable number.

30207722900 is an abundant number, since it is smaller than the sum of its proper divisors (35343036010).

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

30207722900 is a wasteful number, since it uses less digits than its factorization.

30207722900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302077243 (or 302077236 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The spelling of 30207722900 in words is "thirty billion, two hundred seven million, seven hundred twenty-two thousand, nine hundred".

Divisors: 1 2 4 5 10 20 25 50 100 302077229 604154458 1208308916 1510386145 3020772290 6041544580 7551930725 15103861450 30207722900