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30180790100 = 22522910407169
BaseRepresentation
bin11100000110111010…
…100100111101010100
32212220100110222202202
4130012322210331110
5443302240240400
621510451024032
72115623324456
oct340672447524
985810428682
1030180790100
11118882a633a
125a2359b018
132acc9847a6
14166446a2d6
15bb993b4d5
hex706ea4f54

30180790100 has 36 divisors (see below), whose sum is σ = 67750676700. Its totient is φ = 11656028160.

The previous prime is 30180790099. The next prime is 30180790109. The reversal of 30180790100 is 109708103.

It can be written as a sum of positive squares in 6 ways, for example, as 5488439056 + 24692351044 = 74084^2 + 157138^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30180790109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5200685 + ... + 5206484.

Almost surely, 230180790100 is an apocalyptic number.

It is an amenable number.

30180790100 is an abundant number, since it is smaller than the sum of its proper divisors (37569886600).

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

30180790100 is a wasteful number, since it uses less digits than its factorization.

30180790100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10407212 (or 10407205 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 30180790100 in words is "thirty billion, one hundred eighty million, seven hundred ninety thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 29 50 58 100 116 145 290 580 725 1450 2900 10407169 20814338 41628676 52035845 104071690 208143380 260179225 301807901 520358450 603615802 1040716900 1207231604 1509039505 3018079010 6036158020 7545197525 15090395050 30180790100