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38905084 = 2219511909
BaseRepresentation
bin1001010001101…
…0010011111100
32201012120202001
42110122103330
534424430314
63505512044
7651454621
oct224322374
981176661
1038905084
111aa62a69
1211042624
1380a237a
14524a348
153637674
hex251a4fc

38905084 has 12 divisors (see below), whose sum is σ = 71667400. Its totient is φ = 18428688.

The previous prime is 38905081. The next prime is 38905147. The reversal of 38905084 is 48050983.

38905084 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×389050842 = 3027211122094112, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38905081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255879 + ... + 256030.

Almost surely, 238905084 is an apocalyptic number.

It is an amenable number.

38905084 is a deficient number, since it is larger than the sum of its proper divisors (32762316).

38905084 is a wasteful number, since it uses less digits than its factorization.

38905084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511932 (or 511930 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 38905084 is about 6237.3940071155. The cubic root of 38905084 is about 338.8458095120.

The spelling of 38905084 in words is "thirty-eight million, nine hundred five thousand, eighty-four".

Divisors: 1 2 4 19 38 76 511909 1023818 2047636 9726271 19452542 38905084