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61714381 is a prime number
BaseRepresentation
bin1110101101101…
…0111111001101
311022010102012211
43223122333031
5111244330011
610042430421
71346364211
oct353327715
9138112184
1061714381
1131921a23
1218802411
13ca2a3b1
1482a6941
155640b21
hex3adafcd

61714381 has 2 divisors, whose sum is σ = 61714382. Its totient is φ = 61714380.

The previous prime is 61714379. The next prime is 61714427. The reversal of 61714381 is 18341716.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50552100 + 11162281 = 7110^2 + 3341^2 .

It is a cyclic number.

It is not a de Polignac number, because 61714381 - 21 = 61714379 is a prime.

It is a super-2 number, since 2×617143812 = 7617329644426322, which contains 22 as substring.

Together with 61714379, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61714321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30857190 + 30857191.

It is an arithmetic number, because the mean of its divisors is an integer number (30857191).

Almost surely, 261714381 is an apocalyptic number.

It is an amenable number.

61714381 is a deficient number, since it is larger than the sum of its proper divisors (1).

61714381 is an equidigital number, since it uses as much as digits as its factorization.

61714381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 61714381 is about 7855.8501131323. The cubic root of 61714381 is about 395.1804569886.

The spelling of 61714381 in words is "sixty-one million, seven hundred fourteen thousand, three hundred eighty-one".