Search a number
-
+
38648380 = 2256179401
BaseRepresentation
bin1001001101101…
…1101000111100
32200201112121111
42103123220330
534343222010
63500211404
7646335331
oct223335074
980645544
1038648380
111a8a8111
1210b39b64
138012584
1451c0988
1535d658a
hex24dba3c

38648380 has 48 divisors (see below), whose sum is σ = 83744640. Its totient is φ = 14976000.

The previous prime is 38648377. The next prime is 38648399. The reversal of 38648380 is 8384683.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96180 + ... + 96580.

It is an arithmetic number, because the mean of its divisors is an integer number (1744680).

Almost surely, 238648380 is an apocalyptic number.

It is an amenable number.

38648380 is an abundant number, since it is smaller than the sum of its proper divisors (45096260).

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

38648380 is a wasteful number, since it uses less digits than its factorization.

38648380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 40.

The square root of 38648380 is about 6216.7821258268. The cubic root of 38648380 is about 338.0989054999.

The spelling of 38648380 in words is "thirty-eight million, six hundred forty-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 61 79 122 158 244 305 316 395 401 610 790 802 1220 1580 1604 2005 4010 4819 8020 9638 19276 24095 24461 31679 48190 48922 63358 96380 97844 122305 126716 158395 244610 316790 489220 633580 1932419 3864838 7729676 9662095 19324190 38648380