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38189038 = 217266071
BaseRepresentation
bin1001000110101…
…1011111101110
32122212012111211
42101223133232
534234022123
63442305034
7642413206
oct221533756
978765454
1038189038
111a613a98
121095817a
137bb1484
145101406
15354540d
hex246b7ee

38189038 has 12 divisors (see below), whose sum is σ = 60852312. Its totient is φ = 17971040.

The previous prime is 38189033. The next prime is 38189057. The reversal of 38189038 is 83098183.

38189038 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38189033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32458 + ... + 33613.

It is an arithmetic number, because the mean of its divisors is an integer number (5071026).

Almost surely, 238189038 is an apocalyptic number.

38189038 is a deficient number, since it is larger than the sum of its proper divisors (22663274).

38189038 is a wasteful number, since it uses less digits than its factorization.

38189038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66107 (or 66090 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 38189038 is about 6179.7279875412. The cubic root of 38189038 is about 336.7541109762.

The spelling of 38189038 in words is "thirty-eight million, one hundred eighty-nine thousand, thirty-eight".

Divisors: 1 2 17 34 289 578 66071 132142 1123207 2246414 19094519 38189038