Search a number
-
+
31141378052 = 227785344513
BaseRepresentation
bin11101000000001010…
…111011100000000100
32222101021222220201022
4131000022323200010
51002234143044202
622150043450312
72151466226441
oct350012734004
988337886638
1031141378052
1112230550284
126051226998
132c239a2925
141715c789c8
15c23e34ea2
hex7402bb804

31141378052 has 6 divisors (see below), whose sum is σ = 54497411598. Its totient is φ = 15570689024.

The previous prime is 31141378019. The next prime is 31141378127. The reversal of 31141378052 is 25087314113.

It can be written as a sum of positive squares in only one way, i.e., 18674315716 + 12467062336 = 136654^2 + 111656^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3892672253 + ... + 3892672260.

It is an arithmetic number, because the mean of its divisors is an integer number (9082901933).

Almost surely, 231141378052 is an apocalyptic number.

It is an amenable number.

31141378052 is a deficient number, since it is larger than the sum of its proper divisors (23356033546).

31141378052 is a wasteful number, since it uses less digits than its factorization.

31141378052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7785344517 (or 7785344515 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The spelling of 31141378052 in words is "thirty-one billion, one hundred forty-one million, three hundred seventy-eight thousand, fifty-two".

Divisors: 1 2 4 7785344513 15570689026 31141378052