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3678860149 = 19728166457
BaseRepresentation
bin1101101101000110…
…1111001101110101
3100111101102110101121
43123101233031311
530013242011044
61405014423541
7160110536536
oct33321571565
910441373347
103678860149
111618691098
12868061bb1
13468231733
1426c83a68d
15167e8c984
hexdb46f375

3678860149 has 8 divisors (see below), whose sum is σ = 3710748888. Its totient is φ = 3647105280.

The previous prime is 3678860147. The next prime is 3678860153. The reversal of 3678860149 is 9410688763.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1315150225 + 2363709924 = 36265^2 + 48618^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3678860149 - 21 = 3678860147 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3678860096 and 3678860105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3678860147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22129 + ... + 88585.

It is an arithmetic number, because the mean of its divisors is an integer number (463843611).

Almost surely, 23678860149 is an apocalyptic number.

It is an amenable number.

3678860149 is a deficient number, since it is larger than the sum of its proper divisors (31888739).

3678860149 is a wasteful number, since it uses less digits than its factorization.

3678860149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66935.

The product of its (nonzero) digits is 1741824, while the sum is 52.

The square root of 3678860149 is about 60653.6078811475. The cubic root of 3678860149 is about 1543.7291069768.

The spelling of 3678860149 in words is "three billion, six hundred seventy-eight million, eight hundred sixty thousand, one hundred forty-nine".

Divisors: 1 197 281 55357 66457 13092029 18674417 3678860149