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30145100884 = 2215748001753
BaseRepresentation
bin11100000100110010…
…011011110001010100
32212210212022210100221
4130010302123301110
5443214121212014
621503134044124
72115011062333
oct340462336124
985725283327
1030145100884
111186a13a518
125a13649644
132ac546a102
14165d819d1a
15bb673bb24
hex704c9bc54

30145100884 has 12 divisors (see below), whose sum is σ = 53089939924. Its totient is φ = 14976546624.

The previous prime is 30145100813. The next prime is 30145100899. The reversal of 30145100884 is 48800154103.

It can be written as a sum of positive squares in 2 ways, for example, as 5331920400 + 24813180484 = 73020^2 + 157522^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24000249 + ... + 24001504.

Almost surely, 230145100884 is an apocalyptic number.

It is an amenable number.

30145100884 is a deficient number, since it is larger than the sum of its proper divisors (22944839040).

30145100884 is a wasteful number, since it uses less digits than its factorization.

30145100884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48001914 (or 48001912 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

Adding to 30145100884 its reverse (48800154103), we get a palindrome (78945254987).

The spelling of 30145100884 in words is "thirty billion, one hundred forty-five million, one hundred thousand, eight hundred eighty-four".

Divisors: 1 2 4 157 314 628 48001753 96003506 192007012 7536275221 15072550442 30145100884