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38430234 = 2331741863
BaseRepresentation
bin1001001010011…
…0011000011010
32200022110101000
42102212120122
534314231414
63451405430
7644436333
oct222463032
980273330
1038430234
111a769227
1210a53876
137c671ab
14516528a
153591b09
hex24a661a

38430234 has 32 divisors (see below), whose sum is σ = 90426240. Its totient is φ = 12056256.

The previous prime is 38430233. The next prime is 38430277. The reversal of 38430234 is 43203483.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 38430198 and 38430207.

It is not an unprimeable number, because it can be changed into a prime (38430233) 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 15 ways as a sum of consecutive naturals, for example, 20014 + ... + 21849.

It is an arithmetic number, because the mean of its divisors is an integer number (2825820).

Almost surely, 238430234 is an apocalyptic number.

38430234 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

38430234 is an abundant number, since it is smaller than the sum of its proper divisors (51996006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38430234 is a wasteful number, since it uses less digits than its factorization.

38430234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41891 (or 41885 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 38430234 is about 6199.2123693256. The cubic root of 38430234 is about 337.4615857513.

The spelling of 38430234 in words is "thirty-eight million, four hundred thirty thousand, two hundred thirty-four".

Divisors: 1 2 3 6 9 17 18 27 34 51 54 102 153 306 459 918 41863 83726 125589 251178 376767 711671 753534 1130301 1423342 2135013 2260602 4270026 6405039 12810078 19215117 38430234