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195490361 = 11178591217
BaseRepresentation
bin10111010011011…
…11001000111001
3111121211221100202
423221233020321
5400021142421
631222011545
74562432513
oct1351571071
9447757322
10195490361
11a0392890
1255576bb5
1331668791
141bd6abb3
151226810b
hexba6f239

195490361 has 16 divisors (see below), whose sum is σ = 226255680. Its totient is φ = 166932480.

The previous prime is 195490349. The next prime is 195490381. The reversal of 195490361 is 163094591.

It is not a de Polignac number, because 195490361 - 214 = 195473977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195490331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160025 + ... + 161241.

It is an arithmetic number, because the mean of its divisors is an integer number (14140980).

Almost surely, 2195490361 is an apocalyptic number.

195490361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

195490361 is a deficient number, since it is larger than the sum of its proper divisors (30765319).

195490361 is a wasteful number, since it uses less digits than its factorization.

195490361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 195490361 is about 13981.7867599245. The cubic root of 195490361 is about 580.3746697292.

The spelling of 195490361 in words is "one hundred ninety-five million, four hundred ninety thousand, three hundred sixty-one".

Divisors: 1 11 17 187 859 1217 9449 13387 14603 20689 160633 227579 1045403 11499433 17771851 195490361