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438353222613409 = 193719719731604263
BaseRepresentation
bin110001110101011100001000…
…0000111101011100110100001
32010111002011021210000012101101
41203222320100013223212201
5424423434344442112114
64152144405044434401
7161221655333121535
oct14352702007534641
92114064253005341
10438353222613409
111177446153583a4
12411b795b3a8a01
1315a796ba9a80bc
147a365a2ad9bc5
1535a288ec89d74
hex18eae101eb9a1

438353222613409 has 32 divisors (see below), whose sum is σ = 476542642625280. Its totient is φ = 401803101165312.

The previous prime is 438353222613353. The next prime is 438353222613443. The reversal of 438353222613409 is 904316222353834.

It is a cyclic number.

It is not a de Polignac number, because 438353222613409 - 215 = 438353222580641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 438353222613409.

It is not an unprimeable number, because it can be changed into a prime (438353222616409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 272440612 + ... + 274044874.

It is an arithmetic number, because the mean of its divisors is an integer number (14891957582040).

Almost surely, 2438353222613409 is an apocalyptic number.

It is an amenable number.

438353222613409 is a deficient number, since it is larger than the sum of its proper divisors (38189420011871).

438353222613409 is a wasteful number, since it uses less digits than its factorization.

438353222613409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606489.

The product of its (nonzero) digits is 22394880, while the sum is 55.

The spelling of 438353222613409 in words is "four hundred thirty-eight trillion, three hundred fifty-three billion, two hundred twenty-two million, six hundred thirteen thousand, four hundred nine".

Divisors: 1 19 37 197 703 1973 3743 7289 37487 73001 138491 388681 1387019 1604263 7384939 14381197 30480997 59357731 273242743 316039811 1127796889 3165210899 6004756409 11693473007 60139007081 117112803263 222175987133 623546547103 2225143261997 11847384394957 23071222242811 438353222613409