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378043020 = 223252100239
BaseRepresentation
bin10110100010000…
…111101010001100
3222100100120112100
4112202013222030
51233234334040
6101302435100
712240212145
oct2642075214
9870316470
10378043020
11184439353
12a6732a90
13604244c4
14382caacc
15232c7b30
hex16887a8c

378043020 has 36 divisors (see below), whose sum is σ = 1146731040. Its totient is φ = 100811424.

The previous prime is 378043013. The next prime is 378043021. The reversal of 378043020 is 20340873.

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (378043021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1049940 + ... + 1050299.

It is an arithmetic number, because the mean of its divisors is an integer number (31853640).

Almost surely, 2378043020 is an apocalyptic number.

378043020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378043020 is an abundant number, since it is smaller than the sum of its proper divisors (768688020).

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

378043020 is a wasteful number, since it uses less digits than its factorization.

378043020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100254 (or 2100249 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 378043020 is about 19443.3284187662. The cubic root of 378043020 is about 723.0701079264.

Adding to 378043020 its reverse (20340873), we get a palindrome (398383893).

The spelling of 378043020 in words is "three hundred seventy-eight million, forty-three thousand, twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 2100239 4200478 6300717 8400956 10501195 12601434 18902151 21002390 25202868 31503585 37804302 42004780 63007170 75608604 94510755 126014340 189021510 378043020