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90670834 = 271638527
BaseRepresentation
bin1010110011110…
…00011011110010
320022121120000001
411121320123302
5141202431314
612555220214
72150455312
oct531703362
9208546001
1090670834
11471aa381
122644766a
1315a283a7
14c083442
157e60674
hex56786f2

90670834 has 8 divisors (see below), whose sum is σ = 137922048. Its totient is φ = 44696820.

The previous prime is 90670829. The next prime is 90670841. The reversal of 90670834 is 43807609.

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

It is a junction number, because it is equal to n+sod(n) for n = 90670793 and 90670802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319122 + ... + 319405.

It is an arithmetic number, because the mean of its divisors is an integer number (17240256).

Almost surely, 290670834 is an apocalyptic number.

90670834 is a deficient number, since it is larger than the sum of its proper divisors (47251214).

90670834 is a wasteful number, since it uses less digits than its factorization.

90670834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638600.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 90670834 is about 9522.1233976461. The cubic root of 90670834 is about 449.2511561883.

The spelling of 90670834 in words is "ninety million, six hundred seventy thousand, eight hundred thirty-four".

Divisors: 1 2 71 142 638527 1277054 45335417 90670834