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378949890248 = 23312129717719
BaseRepresentation
bin1011000001110110010…
…11000111000011001000
31100020010200001222222022
411200323023013003020
522202042132441443
6450030455144012
736243505630436
oct5407313070310
91306120058868
10378949890248
11136791374386
1261539675008
13299725301b7
14144ac647d56
159ccd89de68
hex583b2c70c8

378949890248 has 32 divisors (see below), whose sum is σ = 733796928000. Its totient is φ = 183276468480.

The previous prime is 378949890239. The next prime is 378949890257. The reversal of 378949890248 is 842098949873.

It is an interprime number because it is at equal distance from previous prime (378949890239) and next prime (378949890257).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169133 + ... + 886851.

It is an arithmetic number, because the mean of its divisors is an integer number (22931154000).

Almost surely, 2378949890248 is an apocalyptic number.

It is an amenable number.

378949890248 is a deficient number, since it is larger than the sum of its proper divisors (354847037752).

378949890248 is a wasteful number, since it uses less digits than its factorization.

378949890248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719885 (or 719881 counting only the distinct ones).

The product of its (nonzero) digits is 250822656, while the sum is 71.

The spelling of 378949890248 in words is "three hundred seventy-eight billion, nine hundred forty-nine million, eight hundred ninety thousand, two hundred forty-eight".

Divisors: 1 2 4 8 31 62 124 248 2129 4258 8516 17032 65999 131998 263996 527992 717719 1435438 2870876 5741752 22249289 44498578 88997156 177994312 1528023751 3056047502 6112095004 12224190008 47368736281 94737472562 189474945124 378949890248