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30142031244 = 223131791079431
BaseRepresentation
bin11100000100100110…
…101110010110001100
32212210122112211121120
4130010212232112030
5443212324444434
621502544200540
72114643016053
oct340446562614
985718484546
1030142031244
1111868433226
125a12609150
132ac4933b60
14165d25b39a
15bb6332349
hex7049ae58c

30142031244 has 48 divisors (see below), whose sum is σ = 76164721920. Its totient is φ = 9222649920.

The previous prime is 30142031239. The next prime is 30142031261. The reversal of 30142031244 is 44213024103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 511792 + ... + 567639.

It is an arithmetic number, because the mean of its divisors is an integer number (1586765040).

Almost surely, 230142031244 is an apocalyptic number.

It is an amenable number.

30142031244 is an abundant number, since it is smaller than the sum of its proper divisors (46022690676).

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

30142031244 is a wasteful number, since it uses less digits than its factorization.

30142031244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079630 (or 1079628 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 30142031244 its reverse (44213024103), we get a palindrome (74355055347).

The spelling of 30142031244 in words is "thirty billion, one hundred forty-two million, thirty-one thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 179 358 537 716 1074 2148 2327 4654 6981 9308 13962 27924 1079431 2158862 3238293 4317724 6476586 12953172 14032603 28065206 42097809 56130412 84195618 168391236 193218149 386436298 579654447 772872596 1159308894 2318617788 2511835937 5023671874 7535507811 10047343748 15071015622 30142031244