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70927481 is a prime number
BaseRepresentation
bin1000011101001…
…00010001111001
311221110111012202
410032210101321
5121124134411
611012115545
71520605442
oct416442171
9157414182
1070927481
1137044959
121b905bb5
1311904a31
1495c42c9
15636083b
hex43a4479

70927481 has 2 divisors, whose sum is σ = 70927482. Its totient is φ = 70927480.

The previous prime is 70927477. The next prime is 70927487. The reversal of 70927481 is 18472907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58003456 + 12924025 = 7616^2 + 3595^2 .

It is a cyclic number.

It is not a de Polignac number, because 70927481 - 22 = 70927477 is a prime.

It is a super-2 number, since 2×709274812 = 10061415122010722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (70927487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35463740 + 35463741.

It is an arithmetic number, because the mean of its divisors is an integer number (35463741).

Almost surely, 270927481 is an apocalyptic number.

It is an amenable number.

70927481 is a deficient number, since it is larger than the sum of its proper divisors (1).

70927481 is an equidigital number, since it uses as much as digits as its factorization.

70927481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 70927481 is about 8421.8454628425. The cubic root of 70927481 is about 413.9407466522.

The spelling of 70927481 in words is "seventy million, nine hundred twenty-seven thousand, four hundred eighty-one".