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195068031 = 365022677
BaseRepresentation
bin10111010000010…
…00000001111111
3111121001111000220
423220020001333
5344414134111
631204552423
74556023314
oct1350100177
9447044026
10195068031
11a0124554
12553b2713
133154b492
141bc9ad0b
15121d2e06
hexba0807f

195068031 has 4 divisors (see below), whose sum is σ = 260090712. Its totient is φ = 130045352.

The previous prime is 195067993. The next prime is 195068059. The reversal of 195068031 is 130860591.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 195068031 - 26 = 195067967 is a prime.

It is a super-2 number, since 2×1950680312 = 76103073436433922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 195067983 and 195068001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195068431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32511336 + ... + 32511341.

It is an arithmetic number, because the mean of its divisors is an integer number (65022678).

Almost surely, 2195068031 is an apocalyptic number.

195068031 is a deficient number, since it is larger than the sum of its proper divisors (65022681).

195068031 is an equidigital number, since it uses as much as digits as its factorization.

195068031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65022680.

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

The square root of 195068031 is about 13966.6757318984. The cubic root of 195068031 is about 579.9564285540.

The spelling of 195068031 in words is "one hundred ninety-five million, sixty-eight thousand, thirty-one".

Divisors: 1 3 65022677 195068031