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69988033 is a prime number
BaseRepresentation
bin1000010101111…
…10111011000001
311212200202112101
410022332323001
5120404104113
610540030401
71506613513
oct412767301
9155622471
1069988033
1136563055
121b532401
131166624b
14941bbb3
1562272dd
hex42beec1

69988033 has 2 divisors, whose sum is σ = 69988034. Its totient is φ = 69988032.

The previous prime is 69988027. The next prime is 69988081. The reversal of 69988033 is 33088996.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68277169 + 1710864 = 8263^2 + 1308^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-69988033 is a prime.

It is not a weakly prime, because it can be changed into another prime (69988003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34994016 + 34994017.

It is an arithmetic number, because the mean of its divisors is an integer number (34994017).

Almost surely, 269988033 is an apocalyptic number.

It is an amenable number.

69988033 is a deficient number, since it is larger than the sum of its proper divisors (1).

69988033 is an equidigital number, since it uses as much as digits as its factorization.

69988033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 69988033 is about 8365.8850697341. The cubic root of 69988033 is about 412.1050432037.

The spelling of 69988033 in words is "sixty-nine million, nine hundred eighty-eight thousand, thirty-three".