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53338817949 = 347648158369
BaseRepresentation
bin110001101011001111…
…011100010110011101
312002200021101200210220
4301223033130112131
51333214214133244
640300431551553
73565533320604
oct615317342635
9162607350726
1053338817949
112069141042a
12a40708b5b9
1350506c3851
14281dd32a3b
1515c2a64319
hexc6b3dc59d

53338817949 has 16 divisors (see below), whose sum is σ = 72644033280. Its totient is φ = 34796666880.

The previous prime is 53338817893. The next prime is 53338817951. The reversal of 53338817949 is 94971883335.

It is not a de Polignac number, because 53338817949 - 27 = 53338817821 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53338817892 and 53338817901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53338810949) 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, 884637 + ... + 943005.

It is an arithmetic number, because the mean of its divisors is an integer number (4540252080).

Almost surely, 253338817949 is an apocalyptic number.

It is an amenable number.

53338817949 is a deficient number, since it is larger than the sum of its proper divisors (19305215331).

53338817949 is a wasteful number, since it uses less digits than its factorization.

53338817949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64900.

The product of its digits is 19595520, while the sum is 60.

The spelling of 53338817949 in words is "fifty-three billion, three hundred thirty-eight million, eight hundred seventeen thousand, nine hundred forty-nine".

Divisors: 1 3 47 141 6481 19443 58369 175107 304607 913821 2743343 8230029 378289489 1134868467 17779605983 53338817949