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38020950 = 23252117681
BaseRepresentation
bin1001000100001…
…0011101010110
32122112122221100
42101002131112
534213132300
63434530530
7641113152
oct221023526
978478840
1038020950
111a509780
1210896a46
137b52b06
14509a062
153510700
hex2442756

38020950 has 72 divisors (see below), whose sum is σ = 111450456. Its totient is φ = 9216000.

The previous prime is 38020949. The next prime is 38020951. The reversal of 38020950 is 5902083.

It is an interprime number because it is at equal distance from previous prime (38020949) and next prime (38020951).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38020951) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 1110 + ... + 8790.

It is an arithmetic number, because the mean of its divisors is an integer number (1547923).

Almost surely, 238020950 is an apocalyptic number.

38020950 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 38020950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55725228).

38020950 is an abundant number, since it is smaller than the sum of its proper divisors (73429506).

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

38020950 is a wasteful number, since it uses less digits than its factorization.

38020950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7710 (or 7702 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 38020950 is about 6166.1130382113. The cubic root of 38020950 is about 336.2593130001.

The spelling of 38020950 in words is "thirty-eight million, twenty thousand, nine hundred fifty".

Divisors: 1 2 3 5 6 9 10 11 15 18 22 25 30 33 45 50 55 66 75 90 99 110 150 165 198 225 275 330 450 495 550 825 990 1650 2475 4950 7681 15362 23043 38405 46086 69129 76810 84491 115215 138258 168982 192025 230430 253473 345645 384050 422455 506946 576075 691290 760419 844910 1152150 1267365 1520838 1728225 2112275 2534730 3456450 3802095 4224550 6336825 7604190 12673650 19010475 38020950