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52990203381 = 373241964399
BaseRepresentation
bin110001010110011101…
…100101010111110101
312001202222102020112020
4301112131211113311
51332010443002011
640202055543353
73554101203603
oct612635452765
9161688366466
1052990203381
1120522652115
12a32a38ab59
134cc640413b
1427c9906873
1515a2151006
hexc567655f5

52990203381 has 8 divisors (see below), whose sum is σ = 71621462400. Its totient is φ = 34842873312.

The previous prime is 52990203377. The next prime is 52990203421. The reversal of 52990203381 is 18330209925.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52990203381 - 22 = 52990203377 is a prime.

It is a super-2 number, since 2×529902033812 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52990203181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120981981 + ... + 120982418.

It is an arithmetic number, because the mean of its divisors is an integer number (8952682800).

Almost surely, 252990203381 is an apocalyptic number.

It is an amenable number.

52990203381 is a deficient number, since it is larger than the sum of its proper divisors (18631259019).

52990203381 is a wasteful number, since it uses less digits than its factorization.

52990203381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241964475.

The product of its (nonzero) digits is 116640, while the sum is 42.

The spelling of 52990203381 in words is "fifty-two billion, nine hundred ninety million, two hundred three thousand, three hundred eighty-one".

Divisors: 1 3 73 219 241964399 725893197 17663401127 52990203381