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380643250 = 25313173677
BaseRepresentation
bin10110101100000…
…010011110110010
3222112020200101011
4112230002132302
51234421041000
6101434301134
712301262041
oct2654023662
9875220334
10380643250
111859549a9
12a75877aa
1360b24bc0
14387a6558
152363d2ba
hex16b027b2

380643250 has 64 divisors (see below), whose sum is σ = 772952544. Its totient is φ = 139526400.

The previous prime is 380643247. The next prime is 380643259. The reversal of 380643250 is 52346083.

380643250 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 16 ways, for example, as 13039321 + 367603929 = 3611^2 + 19173^2 .

It is not an unprimeable number, because it can be changed into a prime (380643259) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 561912 + ... + 562588.

Almost surely, 2380643250 is an apocalyptic number.

380643250 is an abundant number, since it is smaller than the sum of its proper divisors (392309294).

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

380643250 is a wasteful number, since it uses less digits than its factorization.

380643250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 870 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 380643250 is about 19510.0807276649. The cubic root of 380643250 is about 724.7241122301.

It can be divided in two parts, 38064 and 3250, that added together give a palindrome (41314).

The spelling of 380643250 in words is "three hundred eighty million, six hundred forty-three thousand, two hundred fifty".

Divisors: 1 2 5 10 13 25 26 50 65 125 130 173 250 325 346 650 677 865 1354 1625 1730 2249 3250 3385 4325 4498 6770 8650 8801 11245 16925 17602 21625 22490 33850 43250 44005 56225 84625 88010 112450 117121 169250 220025 234242 281125 440050 562250 585605 1100125 1171210 1522573 2200250 2928025 3045146 5856050 7612865 14640125 15225730 29280250 38064325 76128650 190321625 380643250