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269935139 = 2141126079
BaseRepresentation
bin10000000101101…
…110001000100011
3200210221010101202
4100011232020203
51023100411024
642441351415
76455260625
oct2005561043
9623833352
10269935139
1112940a2a1
127649856b
1343c02446
1427bc8c15
1518a70bae
hex1016e223

269935139 has 4 divisors (see below), whose sum is σ = 270063360. Its totient is φ = 269806920.

The previous prime is 269935079. The next prime is 269935151. The reversal of 269935139 is 931539962.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931539962 = 2465769981.

It is a cyclic number.

It is not a de Polignac number, because 269935139 - 224 = 253157923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 269935093 and 269935102.

It is not an unprimeable number, because it can be changed into a prime (269935439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60899 + ... + 65180.

It is an arithmetic number, because the mean of its divisors is an integer number (67515840).

Almost surely, 2269935139 is an apocalyptic number.

269935139 is a deficient number, since it is larger than the sum of its proper divisors (128221).

269935139 is a wasteful number, since it uses less digits than its factorization.

269935139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128220.

The product of its digits is 393660, while the sum is 47.

The square root of 269935139 is about 16429.7029492319. The cubic root of 269935139 is about 646.2786477579.

The spelling of 269935139 in words is "two hundred sixty-nine million, nine hundred thirty-five thousand, one hundred thirty-nine".

Divisors: 1 2141 126079 269935139