Search a number
-
+
70488641 is a prime number
BaseRepresentation
bin1000011001110…
…01001001000001
311220122012020102
410030321021001
5121021114031
610554452145
71514100146
oct414711101
9156565212
1070488641
1136875183
121b734055
13117b0072
14950c3cd
1562c57cb
hex4339241

70488641 has 2 divisors, whose sum is σ = 70488642. Its totient is φ = 70488640.

The previous prime is 70488601. The next prime is 70488659. The reversal of 70488641 is 14688407.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62078641 + 8410000 = 7879^2 + 2900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-70488641 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 70488595 and 70488604.

It is not a weakly prime, because it can be changed into another prime (70488601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35244320 + 35244321.

It is an arithmetic number, because the mean of its divisors is an integer number (35244321).

Almost surely, 270488641 is an apocalyptic number.

It is an amenable number.

70488641 is a deficient number, since it is larger than the sum of its proper divisors (1).

70488641 is an equidigital number, since it uses as much as digits as its factorization.

70488641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 70488641 is about 8395.7513660184. The cubic root of 70488641 is about 413.0852733887.

The spelling of 70488641 in words is "seventy million, four hundred eighty-eight thousand, six hundred forty-one".