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243924007 = 1722436397
BaseRepresentation
bin11101000100111…
…11110000100111
3121222222121211111
432202133300213
5444421032012
640112045451
76021214465
oct1642376047
9558877744
10243924007
11115763798
1269833887
133b6c5c42
1424577835
1516633ba7
hexe89fc27

243924007 has 8 divisors (see below), whose sum is σ = 258428016. Its totient is φ = 229437312.

The previous prime is 243924001. The next prime is 243924013. The reversal of 243924007 is 700429342.

It is an interprime number because it is at equal distance from previous prime (243924001) and next prime (243924013).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243924007 - 211 = 243921959 is a prime.

It is a zygodrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 243924007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243924001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34933 + ... + 41329.

It is an arithmetic number, because the mean of its divisors is an integer number (32303502).

Almost surely, 2243924007 is an apocalyptic number.

243924007 is a deficient number, since it is larger than the sum of its proper divisors (14504009).

243924007 is a wasteful number, since it uses less digits than its factorization.

243924007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8657.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 243924007 is about 15618.0666857329. The cubic root of 243924007 is about 624.8150979434.

The spelling of 243924007 in words is "two hundred forty-three million, nine hundred twenty-four thousand, seven".

Divisors: 1 17 2243 6397 38131 108749 14348471 243924007