Search a number
-
+
38840832 = 29328429
BaseRepresentation
bin1001010000101…
…0101000000000
32201002022121100
42110022220000
534420401312
63504254400
7651066402
oct224125000
981068540
1038840832
111aa19768
1211011400
13807c054
145230b72
1536235dc
hex250aa00

38840832 has 60 divisors (see below), whose sum is σ = 112110570. Its totient is φ = 12945408.

The previous prime is 38840819. The next prime is 38840833. The reversal of 38840832 is 23804883.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 37161216 + 1679616 = 6096^2 + 1296^2 .

It is a super-2 number, since 2×388408322 = 3017220460904448, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (38840833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 394 + ... + 8822.

Almost surely, 238840832 is an apocalyptic number.

38840832 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38840832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56055285).

38840832 is an abundant number, since it is smaller than the sum of its proper divisors (73269738).

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

38840832 is an equidigital number, since it uses as much as digits as its factorization.

38840832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8453 (or 8434 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The square root of 38840832 is about 6232.2413303722. The cubic root of 38840832 is about 338.6591713747.

The spelling of 38840832 in words is "thirty-eight million, eight hundred forty thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 512 576 768 1152 1536 2304 4608 8429 16858 25287 33716 50574 67432 75861 101148 134864 151722 202296 269728 303444 404592 539456 606888 809184 1078912 1213776 1618368 2157824 2427552 3236736 4315648 4855104 6473472 9710208 12946944 19420416 38840832