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196920349 = 432106501
BaseRepresentation
bin10111011110011…
…00010000011101
3111201112120221021
423233030100131
5400402422344
631312404141
74610536543
oct1357142035
9451476837
10196920349
11a117a19a
1255b46651
1331a49622
141c21dd93
151244bb84
hexbbcc41d

196920349 has 6 divisors (see below), whose sum is σ = 201608286. Its totient is φ = 192339000.

The previous prime is 196920343. The next prime is 196920359. The reversal of 196920349 is 943029691.

It can be written as a sum of positive squares in only one way, i.e., 196504324 + 416025 = 14018^2 + 645^2 .

It is not a de Polignac number, because 196920349 - 29 = 196919837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196920343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51402 + ... + 55099.

It is an arithmetic number, because the mean of its divisors is an integer number (33601381).

Almost surely, 2196920349 is an apocalyptic number.

It is an amenable number.

196920349 is a deficient number, since it is larger than the sum of its proper divisors (4687937).

196920349 is an equidigital number, since it uses as much as digits as its factorization.

196920349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106587 (or 106544 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 196920349 is about 14032.8311113617. The cubic root of 196920349 is about 581.7863563609.

The spelling of 196920349 in words is "one hundred ninety-six million, nine hundred twenty thousand, three hundred forty-nine".

Divisors: 1 43 1849 106501 4579543 196920349