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195060091 = 1731370133
BaseRepresentation
bin10111010000001…
…10000101111011
3111121001002010211
423220012011323
5344413410331
631204451551
74555661212
oct1350060573
9447032124
10195060091
11a0119596
12553a9bb7
1331547995
141bc98079
15121d08b1
hexba0617b

195060091 has 8 divisors (see below), whose sum is σ = 213197184. Its totient is φ = 177663360.

The previous prime is 195060049. The next prime is 195060121. The reversal of 195060091 is 190060591.

195060091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 195060091 - 215 = 195027323 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195060031) 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, 184540 + ... + 185593.

It is an arithmetic number, because the mean of its divisors is an integer number (26649648).

Almost surely, 2195060091 is an apocalyptic number.

195060091 is a deficient number, since it is larger than the sum of its proper divisors (18137093).

195060091 is a wasteful number, since it uses less digits than its factorization.

195060091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370181.

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

The square root of 195060091 is about 13966.3914809803. The cubic root of 195060091 is about 579.9485596472.

The spelling of 195060091 in words is "one hundred ninety-five million, sixty thousand, ninety-one".

Divisors: 1 17 31 527 370133 6292261 11474123 195060091