Search a number
-
+
31041453545 = 523972839833
BaseRepresentation
bin11100111010001101…
…101111110111101001
32222010022222020001122
4130322031233313221
51002033103003140
622132114025025
72146144000364
oct347215576751
988108866048
1031041453545
111218a100543
126023878175
132c090875bb
1417068a70db
15c1a297ab5
hex73a36fde9

31041453545 has 32 divisors (see below), whose sum is σ = 39412783872. Its totient is φ = 23423127552.

The previous prime is 31041453533. The next prime is 31041453551. The reversal of 31041453545 is 54535414013.

It is a cyclic number.

It is not a de Polignac number, because 31041453545 - 224 = 31024676329 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3151949 + ... + 3161781.

It is an arithmetic number, because the mean of its divisors is an integer number (1231649496).

Almost surely, 231041453545 is an apocalyptic number.

It is an amenable number.

31041453545 is a deficient number, since it is larger than the sum of its proper divisors (8371330327).

31041453545 is a wasteful number, since it uses less digits than its factorization.

31041453545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10241.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 31041453545 its reverse (54535414013), we get a palindrome (85576867558).

The spelling of 31041453545 in words is "thirty-one billion, forty-one million, four hundred fifty-three thousand, five hundred forty-five".

Divisors: 1 5 23 97 115 283 485 1415 2231 6509 9833 11155 27451 32545 49165 137255 226159 631373 953801 1130795 2782739 3156865 4769005 13913695 21937423 64002997 109687115 269925683 320014985 1349628415 6208290709 31041453545