Search a number
-
+
69948941 is a prime number
BaseRepresentation
bin1000010101101…
…01011000001101
311212121202220112
410022311120031
5120401331231
610535125405
71506361526
oct412653015
9155552815
1069948941
1136536747
121b513865
131165150a
14940b84d
15621a92b
hex42b560d

69948941 has 2 divisors, whose sum is σ = 69948942. Its totient is φ = 69948940.

The previous prime is 69948929. The next prime is 69948947. The reversal of 69948941 is 14984996.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38700841 + 31248100 = 6221^2 + 5590^2 .

It is a cyclic number.

It is not a de Polignac number, because 69948941 - 214 = 69932557 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 69948941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69948947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34974470 + 34974471.

It is an arithmetic number, because the mean of its divisors is an integer number (34974471).

Almost surely, 269948941 is an apocalyptic number.

It is an amenable number.

69948941 is a deficient number, since it is larger than the sum of its proper divisors (1).

69948941 is an equidigital number, since it uses as much as digits as its factorization.

69948941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 50.

The square root of 69948941 is about 8363.5483498333. The cubic root of 69948941 is about 412.0283014618.

The spelling of 69948941 in words is "sixty-nine million, nine hundred forty-eight thousand, nine hundred forty-one".