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38769858 = 23223372531
BaseRepresentation
bin1001001111100…
…1010011000010
32200221201020200
42103321103002
534411113413
63502550030
7650352441
oct223712302
980851220
1038769858
111a980406
1210b98316
13805595a
145212d58
15360c573
hex24f94c2

38769858 has 48 divisors (see below), whose sum is σ = 90058176. Its totient is φ = 12022560.

The previous prime is 38769817. The next prime is 38769859. The reversal of 38769858 is 85896783.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (38769859) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14053 + ... + 16583.

It is an arithmetic number, because the mean of its divisors is an integer number (1876212).

Almost surely, 238769858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38769858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45029088).

38769858 is an abundant number, since it is smaller than the sum of its proper divisors (51288318).

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

38769858 is a wasteful number, since it uses less digits than its factorization.

38769858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2599 (or 2596 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 38769858 is about 6226.5446276406. The cubic root of 38769858 is about 338.4527678724.

The spelling of 38769858 in words is "thirty-eight million, seven hundred sixty-nine thousand, eight hundred fifty-eight".

Divisors: 1 2 3 6 9 18 23 37 46 69 74 111 138 207 222 333 414 666 851 1702 2531 2553 5062 5106 7593 7659 15186 15318 22779 45558 58213 93647 116426 174639 187294 280941 349278 523917 561882 842823 1047834 1685646 2153881 4307762 6461643 12923286 19384929 38769858