Search a number
-
+
31421321334234 = 23213207371647531
BaseRepresentation
bin1110010010011110110001…
…01100100100110111011010
311010020211220220112120000200
413021033120230210313122
513104301331230143414
6150454431124043030
76422054430400446
oct711173054446732
9133224826476020
1031421321334234
11a014786817327
1236357b4b33476
13146c0303b8510
147a8b2b553826
15397519bab109
hex1c93d8b24dda

31421321334234 has 48 divisors (see below), whose sum is σ = 73316883223584. Its totient is φ = 9668037319200.

The previous prime is 31421321334233. The next prime is 31421321334281. The reversal of 31421321334234 is 43243312312413.

31421321334234 is a `hidden beast` number, since 3 + 1 + 4 + 2 + 13 + 213 + 3 + 423 + 4 = 666.

It is not an unprimeable number, because it can be changed into a prime (31421321334233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48201049 + ... + 48848579.

It is an arithmetic number, because the mean of its divisors is an integer number (1527435067158).

Almost surely, 231421321334234 is an apocalyptic number.

31421321334234 is an abundant number, since it is smaller than the sum of its proper divisors (41895561889350).

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

31421321334234 is a wasteful number, since it uses less digits than its factorization.

31421321334234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854923 (or 854920 counting only the distinct ones).

The product of its digits is 124416, while the sum is 36.

Adding to 31421321334234 its reverse (43243312312413), we get a palindrome (74664633646647).

The spelling of 31421321334234 in words is "thirty-one trillion, four hundred twenty-one billion, three hundred twenty-one million, three hundred thirty-four thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 207371 414742 622113 647531 1244226 1295062 1866339 1942593 2695823 3732678 3885186 5391646 5827779 8087469 8417903 11655558 16174938 16835806 24262407 25253709 48524814 50507418 75761127 151522254 134279151001 268558302002 402837453003 805674906006 1208512359009 1745628963013 2417024718018 3491257926026 5236886889039 10473773778078 15710660667117 31421321334234