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194131353 = 31314893343
BaseRepresentation
bin10111001001000…
…11010110011001
3111112021220011010
423210203112121
5344144200403
631132524133
74545042423
oct1344432631
9445256133
10194131353
119a644839
1255020649
13312b1030
141bad5813
151209a603
hexb923599

194131353 has 16 divisors (see below), whose sum is σ = 279023360. Its totient is φ = 119349504.

The previous prime is 194131271. The next prime is 194131363. The reversal of 194131353 is 353131491.

194131353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 194131353 - 218 = 193869209 is a prime.

It is a super-2 number, since 2×1941313532 = 75373964435221218, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194131353.

It is not an unprimeable number, because it can be changed into a prime (194131363) 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, 56400 + ... + 59742.

It is an arithmetic number, because the mean of its divisors is an integer number (17438960).

Almost surely, 2194131353 is an apocalyptic number.

194131353 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

194131353 is a deficient number, since it is larger than the sum of its proper divisors (84892007).

194131353 is a wasteful number, since it uses less digits than its factorization.

194131353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848.

The product of its digits is 4860, while the sum is 30.

The square root of 194131353 is about 13933.1027771993. The cubic root of 194131353 is about 579.0266601891.

The spelling of 194131353 in words is "one hundred ninety-four million, one hundred thirty-one thousand, three hundred fifty-three".

Divisors: 1 3 13 39 1489 3343 4467 10029 19357 43459 58071 130377 4977727 14933181 64710451 194131353