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91960105 = 531593291
BaseRepresentation
bin1010111101100…
…11001100101001
320102001001112211
411132303030221
5142020210410
613043005121
72164435156
oct536631451
9212031484
1091960105
11479aaa96
12269697a1
131608a183
14c2db22d
15811768a
hex57b3329

91960105 has 8 divisors (see below), whose sum is σ = 113912064. Its totient is φ = 71194800.

The previous prime is 91960093. The next prime is 91960111. The reversal of 91960105 is 50106919.

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

It is not a de Polignac number, because 91960105 - 223 = 83571497 is a prime.

It is a super-3 number, since 3×919601053 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian 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, 296491 + ... + 296800.

It is an arithmetic number, because the mean of its divisors is an integer number (14239008).

Almost surely, 291960105 is an apocalyptic number.

It is an amenable number.

91960105 is a deficient number, since it is larger than the sum of its proper divisors (21951959).

91960105 is a wasteful number, since it uses less digits than its factorization.

91960105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593327.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 91960105 is about 9589.5831504816. The cubic root of 91960105 is about 451.3704803847.

The spelling of 91960105 in words is "ninety-one million, nine hundred sixty thousand, one hundred five".

Divisors: 1 5 31 155 593291 2966455 18392021 91960105