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90643755343 = 2318947208003
BaseRepresentation
bin101010001101011001…
…0011111000101001111
322122222010012212102211
41110122302133011033
52441114300132333
6105350254131251
76356144131201
oct1243262370517
9278863185384
1090643755343
1135495044aa9
12156984b0b27
1387172caabb
14455c5d4771
152557b3decd
hex151ac9f14f

90643755343 has 8 divisors (see below), whose sum is σ = 94590235008. Its totient is φ = 86697729624.

The previous prime is 90643755313. The next prime is 90643755347. The reversal of 90643755343 is 34355734609.

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

It is a cyclic number.

It is not a de Polignac number, because 90643755343 - 229 = 90106884431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90643755347) 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, 331780 + ... + 539782.

It is an arithmetic number, because the mean of its divisors is an integer number (11823779376).

Almost surely, 290643755343 is an apocalyptic number.

90643755343 is a deficient number, since it is larger than the sum of its proper divisors (3946479665).

90643755343 is a wasteful number, since it uses less digits than its factorization.

90643755343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226973.

The product of its (nonzero) digits is 4082400, while the sum is 49.

The spelling of 90643755343 in words is "ninety billion, six hundred forty-three million, seven hundred fifty-five thousand, three hundred forty-three".

Divisors: 1 23 18947 208003 435781 4784069 3941032841 90643755343