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52621272243 = 332669373013
BaseRepresentation
bin110001000000011110…
…001110010010110011
312000211021012121011000
4301000132032102303
51330232021202433
640101320253043
73542001301611
oct610036162263
9160737177130
1052621272243
1120353377751
12a246911183
134c67b501a7
14279290c6b1
15157ea78113
hexc4078e4b3

52621272243 has 16 divisors (see below), whose sum is σ = 77961428640. Its totient is φ = 35079053472.

The previous prime is 52621272211. The next prime is 52621272283. The reversal of 52621272243 is 34227212625.

52621272243 is a `hidden beast` number, since 5 + 2 + 621 + 2 + 7 + 2 + 24 + 3 = 666.

It is not a de Polignac number, because 52621272243 - 25 = 52621272211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52621272198 and 52621272207.

It is not an unprimeable number, because it can be changed into a prime (52621272283) 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, 684205 + ... + 757217.

It is an arithmetic number, because the mean of its divisors is an integer number (4872589290).

Almost surely, 252621272243 is an apocalyptic number.

52621272243 is a deficient number, since it is larger than the sum of its proper divisors (25340156397).

52621272243 is a wasteful number, since it uses less digits than its factorization.

52621272243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99715 (or 99709 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

Adding to 52621272243 its reverse (34227212625), we get a palindrome (86848484868).

The spelling of 52621272243 in words is "fifty-two billion, six hundred twenty-one million, two hundred seventy-two thousand, two hundred forty-three".

Divisors: 1 3 9 27 26693 73013 80079 219039 240237 657117 720711 1971351 1948936009 5846808027 17540424081 52621272243