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38212042 = 2112157901
BaseRepresentation
bin1001000111000…
…1000111001010
32122220101001211
42101301013022
534240241132
63443003334
7642540241
oct221610712
978811054
1038212042
111a62a300
121096954a
137bbba9b
145109958
15354c147
hex24711ca

38212042 has 12 divisors (see below), whose sum is σ = 63002898. Its totient is φ = 17369000.

The previous prime is 38212003. The next prime is 38212051. The reversal of 38212042 is 24021283.

It can be written as a sum of positive squares in only one way, i.e., 35153041 + 3059001 = 5929^2 + 1749^2 .

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 78709 + ... + 79192.

Almost surely, 238212042 is an apocalyptic number.

38212042 is a deficient number, since it is larger than the sum of its proper divisors (24790856).

38212042 is a wasteful number, since it uses less digits than its factorization.

38212042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157925 (or 157914 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 38212042 is about 6181.5889543062. The cubic root of 38212042 is about 336.8217144652.

The spelling of 38212042 in words is "thirty-eight million, two hundred twelve thousand, forty-two".

Divisors: 1 2 11 22 121 242 157901 315802 1736911 3473822 19106021 38212042