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30269131 is a prime number
BaseRepresentation
bin111001101110…
…1111011001011
32002221211102221
41303131323023
530222103011
63000434511
7515166124
oct163357313
962854387
1030269131
11160a4712
12a178a37
13636a639
14403d04b
1529cd971
hex1cddecb

30269131 has 2 divisors, whose sum is σ = 30269132. Its totient is φ = 30269130.

The previous prime is 30269101. The next prime is 30269137. The reversal of 30269131 is 13196203.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30269131 is a prime.

It is a super-2 number, since 2×302691312 = 1832440582990322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30269096 and 30269105.

It is not a weakly prime, because it can be changed into another prime (30269137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15134565 + 15134566.

It is an arithmetic number, because the mean of its divisors is an integer number (15134566).

Almost surely, 230269131 is an apocalyptic number.

30269131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30269131 is an equidigital number, since it uses as much as digits as its factorization.

30269131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 30269131 is about 5501.7389069275. The cubic root of 30269131 is about 311.6496553703.

The spelling of 30269131 in words is "thirty million, two hundred sixty-nine thousand, one hundred thirty-one".