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53219004761 = 1361564111897
BaseRepresentation
bin110001100100000110…
…011001000101011001
312002100220221120000102
4301210012121011121
51332443031123021
640240511545145
73562550035166
oct614406310531
9162326846012
1053219004761
112062a816a6a
12a392b2b1b5
135031933980
14280c06506d
1515b729900b
hexc64199159

53219004761 has 16 divisors (see below), whose sum is σ = 58267551888. Its totient is φ = 48307276800.

The previous prime is 53219004691. The next prime is 53219004823. The reversal of 53219004761 is 16740091235.

It can be written as a sum of positive squares in 8 ways, for example, as 2061160000 + 51157844761 = 45400^2 + 226181^2 .

It is a cyclic number.

It is not a de Polignac number, because 53219004761 - 210 = 53219003737 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53219004961) 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, 4467365 + ... + 4479261.

It is an arithmetic number, because the mean of its divisors is an integer number (3641721993).

Almost surely, 253219004761 is an apocalyptic number.

It is an amenable number.

53219004761 is a deficient number, since it is larger than the sum of its proper divisors (5048547127).

53219004761 is a wasteful number, since it uses less digits than its factorization.

53219004761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17612.

The product of its (nonzero) digits is 45360, while the sum is 38.

Adding to 53219004761 its reverse (16740091235), we get a palindrome (69959095996).

The spelling of 53219004761 in words is "fifty-three billion, two hundred nineteen million, four thousand, seven hundred sixty-one".

Divisors: 1 13 61 793 5641 11897 73333 154661 344101 725717 4473313 9434321 67110977 872442701 4093769597 53219004761