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213143204044 = 221723971140351
BaseRepresentation
bin1100011010000001010…
…0110011000011001100
3202101011022112121222101
43012200110303003030
511443004130012134
6241525554324444
721253613225101
oct3064024630314
9671138477871
10213143204044
1182436866a01
1235385289724
131713a2806a4
14a45d886aa8
155827261e14
hex31a05330cc

213143204044 has 48 divisors (see below), whose sum is σ = 412540563456. Its totient is φ = 95842208000.

The previous prime is 213143204041. The next prime is 213143204063. The reversal of 213143204044 is 440402341312.

It is not an unprimeable number, because it can be changed into a prime (213143204041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1448469 + ... + 1588819.

It is an arithmetic number, because the mean of its divisors is an integer number (8594595072).

Almost surely, 2213143204044 is an apocalyptic number.

It is an amenable number.

213143204044 is a deficient number, since it is larger than the sum of its proper divisors (199397359412).

213143204044 is a wasteful number, since it uses less digits than its factorization.

213143204044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141366 (or 141364 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 213143204044 its reverse (440402341312), we get a palindrome (653545545356).

The spelling of 213143204044 in words is "two hundred thirteen billion, one hundred forty-three million, two hundred four thousand, forty-four".

Divisors: 1 2 4 17 23 34 46 68 92 391 782 971 1564 1942 3884 16507 22333 33014 44666 66028 89332 140351 280702 379661 561404 759322 1518644 2385967 3228073 4771934 6456146 9543868 12912292 54877241 109754482 136280821 219508964 272561642 545123284 2316773957 3134458883 4633547914 6268917766 9267095828 12537835532 53285801011 106571602022 213143204044