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53031361012 = 22717923105673
BaseRepresentation
bin110001011000111010…
…100101100111110100
312001212211212021011221
4301120322211213310
51332102012023022
640210130040124
73555111062650
oct613072454764
9161784767157
1053031361012
1120543903493
12a340119044
135001ab4876
1427d117ba60
1515a5a80cc7
hexc58ea59f4

53031361012 has 24 divisors (see below), whose sum is σ = 106069643456. Its totient is φ = 22726243008.

The previous prime is 53031361003. The next prime is 53031361013. The reversal of 53031361012 is 21016313035.

It is a super-4 number, since 4×530313610124 (a number of 44 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53031361013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449008 + ... + 554680.

Almost surely, 253031361012 is an apocalyptic number.

It is an amenable number.

53031361012 is an abundant number, since it is smaller than the sum of its proper divisors (53038282444).

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

53031361012 is a wasteful number, since it uses less digits than its factorization.

53031361012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123607 (or 123605 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

Adding to 53031361012 its reverse (21016313035), we get a palindrome (74047674047).

The spelling of 53031361012 in words is "fifty-three billion, thirty-one million, three hundred sixty-one thousand, twelve".

Divisors: 1 2 4 7 14 28 17923 35846 71692 105673 125461 211346 250922 422692 501844 739711 1479422 2958844 1893977179 3787954358 7575908716 13257840253 26515680506 53031361012