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195161406 = 23112956991
BaseRepresentation
bin10111010000111…
…10110100111110
3111121020020010020
423220132310332
5344430131111
631210553010
74556562456
oct1350366476
9447206106
10195161406
11a0188720
1255438766
1331581b2b
141bcc2d66
1512200906
hexba1ed3e

195161406 has 16 divisors (see below), whose sum is σ = 425806848. Its totient is φ = 59139800.

The previous prime is 195161389. The next prime is 195161429. The reversal of 195161406 is 604161591.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1478430 + ... + 1478561.

It is an arithmetic number, because the mean of its divisors is an integer number (26612928).

Almost surely, 2195161406 is an apocalyptic number.

195161406 is an abundant number, since it is smaller than the sum of its proper divisors (230645442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

195161406 is a wasteful number, since it uses less digits than its factorization.

195161406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957007.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 195161406 is about 13970.0181102245. The cubic root of 195161406 is about 580.0489514768.

The spelling of 195161406 in words is "one hundred ninety-five million, one hundred sixty-one thousand, four hundred six".

Divisors: 1 2 3 6 11 22 33 66 2956991 5913982 8870973 17741946 32526901 65053802 97580703 195161406