Search a number
-
+
38142748 = 2278531597
BaseRepresentation
bin1001000110000…
…0001100011100
32122202212000101
42101200030130
534231031443
63441310444
7642131230
oct221401434
978685011
1038142748
111a592236
1210935424
137b96397
1450cc5c0
15353684d
hex246031c

38142748 has 24 divisors (see below), whose sum is σ = 76422752. Its totient is φ = 16317504.

The previous prime is 38142739. The next prime is 38142749. The reversal of 38142748 is 84724183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38142749) 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, 23086 + ... + 24682.

Almost surely, 238142748 is an apocalyptic number.

It is an amenable number.

38142748 is an abundant number, since it is smaller than the sum of its proper divisors (38280004).

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

38142748 is a wasteful number, since it uses less digits than its factorization.

38142748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461 (or 2459 counting only the distinct ones).

The product of its digits is 43008, while the sum is 37.

The square root of 38142748 is about 6175.9815414232. The cubic root of 38142748 is about 336.6179929415.

The spelling of 38142748 in words is "thirty-eight million, one hundred forty-two thousand, seven hundred forty-eight".

Divisors: 1 2 4 7 14 28 853 1597 1706 3194 3412 5971 6388 11179 11942 22358 23884 44716 1362241 2724482 5448964 9535687 19071374 38142748