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169440339 = 34310191289
BaseRepresentation
bin10100001100101…
…11010001010011
3102210211110110010
422012113101103
5321334042324
624451410003
74125135105
oct1206272123
9383743403
10169440339
1187710042
12488b3903
1329147673
1418709575
15ed1e829
hexa197453

169440339 has 16 divisors (see below), whose sum is σ = 231580800. Its totient is φ = 110139456.

The previous prime is 169440329. The next prime is 169440409. The reversal of 169440339 is 933044961.

It is not a de Polignac number, because 169440339 - 217 = 169309267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 169440297 and 169440306.

It is not an unprimeable number, because it can be changed into a prime (169440319) 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 in 15 ways as a sum of consecutive naturals, for example, 130807 + ... + 132095.

It is an arithmetic number, because the mean of its divisors is an integer number (14473800).

Almost surely, 2169440339 is an apocalyptic number.

169440339 is a deficient number, since it is larger than the sum of its proper divisors (62140461).

169440339 is a wasteful number, since it uses less digits than its factorization.

169440339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2354.

The product of its (nonzero) digits is 69984, while the sum is 39.

The square root of 169440339 is about 13016.9250977333. The cubic root of 169440339 is about 553.3572493735.

The spelling of 169440339 in words is "one hundred sixty-nine million, four hundred forty thousand, three hundred thirty-nine".

Divisors: 1 3 43 129 1019 1289 3057 3867 43817 55427 131451 166281 1313491 3940473 56480113 169440339