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39141217 = 54317207
BaseRepresentation
bin1001010101001…
…1111101100001
32201122120122201
42111103331201
540010004332
63514533201
7653460223
oct225237541
981576581
1039141217
1120104415
1211137201
1381559ab
1452ac413
1536825e7
hex2553f61

39141217 has 4 divisors (see below), whose sum is σ = 39153856. Its totient is φ = 39128580.

The previous prime is 39141211. The next prime is 39141229. The reversal of 39141217 is 71214193.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 71214193 = 271262783.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-39141217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39141211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1828 + ... + 9034.

It is an arithmetic number, because the mean of its divisors is an integer number (9788464).

Almost surely, 239141217 is an apocalyptic number.

It is an amenable number.

39141217 is a deficient number, since it is larger than the sum of its proper divisors (12639).

39141217 is an equidigital number, since it uses as much as digits as its factorization.

39141217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12638.

The product of its digits is 1512, while the sum is 28.

The square root of 39141217 is about 6256.2941906531. The cubic root of 39141217 is about 339.5299646828.

The spelling of 39141217 in words is "thirty-nine million, one hundred forty-one thousand, two hundred seventeen".

Divisors: 1 5431 7207 39141217