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234869805 = 32514473607
BaseRepresentation
bin11011111111111…
…01010000101101
3121100221121210200
431333331100231
5440111313210
635150024113
75551234422
oct1577752055
9540847720
10234869805
1111063a185
12667a8039
1339875a21
142329bd49
15159460c0
hexdffd42d

234869805 has 24 divisors (see below), whose sum is σ = 407501952. Its totient is φ = 125142624.

The previous prime is 234869801. The next prime is 234869809. The reversal of 234869805 is 508968432.

It is an interprime number because it is at equal distance from previous prime (234869801) and next prime (234869809).

It is not a de Polignac number, because 234869805 - 22 = 234869801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234869801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63312 + ... + 66918.

It is an arithmetic number, because the mean of its divisors is an integer number (16979248).

Almost surely, 2234869805 is an apocalyptic number.

It is an amenable number.

234869805 is a deficient number, since it is larger than the sum of its proper divisors (172632147).

234869805 is a wasteful number, since it uses less digits than its factorization.

234869805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065 (or 5062 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 234869805 is about 15325.4626357575. The cubic root of 234869805 is about 616.9865959418.

The spelling of 234869805 in words is "two hundred thirty-four million, eight hundred sixty-nine thousand, eight hundred five".

Divisors: 1 3 5 9 15 45 1447 3607 4341 7235 10821 13023 18035 21705 32463 54105 65115 162315 5219329 15657987 26096645 46973961 78289935 234869805