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43049238 = 2323311951
BaseRepresentation
bin1010010000111…
…0000100010110
310000000010110020
42210032010112
542010033423
64134410010
71031624661
oct244160426
9100003406
1043049238
1122333591
1212500906
138bc372b
145a086d8
153ba54e3
hex290e116

43049238 has 16 divisors (see below), whose sum is σ = 89842176. Its totient is φ = 13725800.

The previous prime is 43049213. The next prime is 43049239. The reversal of 43049238 is 83294034.

It is a junction number, because it is equal to n+sod(n) for n = 43049199 and 43049208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43049239) 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, 155838 + ... + 156113.

It is an arithmetic number, because the mean of its divisors is an integer number (5615136).

Almost surely, 243049238 is an apocalyptic number.

43049238 is an abundant number, since it is smaller than the sum of its proper divisors (46792938).

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

43049238 is a wasteful number, since it uses less digits than its factorization.

43049238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311979.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 43049238 is about 6561.1918124682. The cubic root of 43049238 is about 350.4734762045.

The spelling of 43049238 in words is "forty-three million, forty-nine thousand, two hundred thirty-eight".