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83906377 = 4113914723
BaseRepresentation
bin1010000000001…
…00111101001001
312211212212220121
411000010331021
5132440001002
612154223241
72036123002
oct500047511
9184785817
1083906377
11433aa115
1224124b21
13144ca459
14b2021a9
157576237
hex5004f49

83906377 has 8 divisors (see below), whose sum is σ = 86577120. Its totient is φ = 81265440.

The previous prime is 83906371. The next prime is 83906393. The reversal of 83906377 is 77360938.

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 83906377 - 211 = 83904329 is a prime.

It is a super-2 number, since 2×839063772 = 14080560202532258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83906371) 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, 1663 + ... + 13060.

It is an arithmetic number, because the mean of its divisors is an integer number (10822140).

Almost surely, 283906377 is an apocalyptic number.

It is an amenable number.

83906377 is a deficient number, since it is larger than the sum of its proper divisors (2670743).

83906377 is a wasteful number, since it uses less digits than its factorization.

83906377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14903.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 83906377 is about 9160.0424125656. The cubic root of 83906377 is about 437.7891456766.

The spelling of 83906377 in words is "eighty-three million, nine hundred six thousand, three hundred seventy-seven".

Divisors: 1 41 139 5699 14723 603643 2046497 83906377