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70038469 is a prime number
BaseRepresentation
bin1000010110010…
…11001111000101
311212210022201101
410023023033011
5120412212334
610541100101
71510213534
oct413131705
9155708641
1070038469
1136597a36
121b557631
13116831a7
14943231b
156237214
hex42cb3c5

70038469 has 2 divisors, whose sum is σ = 70038470. Its totient is φ = 70038468.

The previous prime is 70038467. The next prime is 70038497. The reversal of 70038469 is 96483007.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69505569 + 532900 = 8337^2 + 730^2 .

It is a cyclic number.

It is not a de Polignac number, because 70038469 - 21 = 70038467 is a prime.

It is a super-2 number, since 2×700384692 = 9810774279727922, which contains 22 as substring.

Together with 70038467, 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 (70038467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35019234 + 35019235.

It is an arithmetic number, because the mean of its divisors is an integer number (35019235).

Almost surely, 270038469 is an apocalyptic number.

It is an amenable number.

70038469 is a deficient number, since it is larger than the sum of its proper divisors (1).

70038469 is an equidigital number, since it uses as much as digits as its factorization.

70038469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 70038469 is about 8368.8989120433. The cubic root of 70038469 is about 412.2040122144.

It can be divided in two parts, 70038 and 469, that added together give a palindrome (70507).

The spelling of 70038469 in words is "seventy million, thirty-eight thousand, four hundred sixty-nine".