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61258741 is a prime number
BaseRepresentation
bin1110100110101…
…1101111110101
311021021021012021
43221223233311
5111140234431
610024553141
71342455625
oct351535765
9137237167
1061258741
1131640665
12186227b1
13c8cab9b
1481c8885
1555a0b11
hex3a6bbf5

61258741 has 2 divisors, whose sum is σ = 61258742. Its totient is φ = 61258740.

The previous prime is 61258739. The next prime is 61258751. The reversal of 61258741 is 14785216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60124516 + 1134225 = 7754^2 + 1065^2 .

It is a cyclic number.

It is not a de Polignac number, because 61258741 - 21 = 61258739 is a prime.

Together with 61258739, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is equal to p3632389 and since 61258741 and 3632389 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 61258697 and 61258706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61258721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30629370 + 30629371.

It is an arithmetic number, because the mean of its divisors is an integer number (30629371).

Almost surely, 261258741 is an apocalyptic number.

It is an amenable number.

61258741 is a deficient number, since it is larger than the sum of its proper divisors (1).

61258741 is an equidigital number, since it uses as much as digits as its factorization.

61258741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 34.

The square root of 61258741 is about 7826.7963433323. The cubic root of 61258741 is about 394.2055087542.

The spelling of 61258741 in words is "sixty-one million, two hundred fifty-eight thousand, seven hundred forty-one".