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69614021 is a prime number
BaseRepresentation
bin1000010011000…
…11100111000101
311211222202111002
410021203213011
5120310122041
610524023045
71503465221
oct411434705
9154882432
1069614021
1136328054
121b391a85
1311564c39
149361781
1561a159b
hex42639c5

69614021 has 2 divisors, whose sum is σ = 69614022. Its totient is φ = 69614020.

The previous prime is 69613991. The next prime is 69614029. The reversal of 69614021 is 12041696.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44222500 + 25391521 = 6650^2 + 5039^2 .

It is a cyclic number.

It is not a de Polignac number, because 69614021 - 210 = 69612997 is a prime.

It is a super-2 number, since 2×696140212 = 9692223839576882, which contains 22 as substring.

It is a Chen prime.

It is equal to p4096721 and since 69614021 and 4096721 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69614029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34807010 + 34807011.

It is an arithmetic number, because the mean of its divisors is an integer number (34807011).

Almost surely, 269614021 is an apocalyptic number.

It is an amenable number.

69614021 is a deficient number, since it is larger than the sum of its proper divisors (1).

69614021 is an equidigital number, since it uses as much as digits as its factorization.

69614021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 69614021 is about 8343.5017228979. The cubic root of 69614021 is about 411.3696431611.

The spelling of 69614021 in words is "sixty-nine million, six hundred fourteen thousand, twenty-one".