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13211243384 = 233767765927
BaseRepresentation
bin11000100110111001…
…11001001101111000
31021002201021200220112
430103130321031320
5204024034242014
610022534443452
7645246500363
oct142334711570
937081250815
1013211243384
11566a447769
122688503588
1313270947a1
148d48370da
15524c7c73e
hex313739378

13211243384 has 32 divisors (see below), whose sum is σ = 25478534880. Its totient is φ = 6417500544.

The previous prime is 13211243333. The next prime is 13211243407. The reversal of 13211243384 is 48334211231.

It is a self number, because there is not a number n which added to its sum of digits gives 13211243384.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167429 + ... + 233355.

It is an arithmetic number, because the mean of its divisors is an integer number (796204215).

Almost surely, 213211243384 is an apocalyptic number.

It is an amenable number.

13211243384 is a deficient number, since it is larger than the sum of its proper divisors (12267291496).

13211243384 is a wasteful number, since it uses less digits than its factorization.

13211243384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66647 (or 66643 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The spelling of 13211243384 in words is "thirteen billion, two hundred eleven million, two hundred forty-three thousand, three hundred eighty-four".

Divisors: 1 2 4 8 37 74 148 296 677 1354 2708 5416 25049 50098 65927 100196 131854 200392 263708 527416 2439299 4878598 9757196 19514392 44632579 89265158 178530316 357060632 1651405423 3302810846 6605621692 13211243384