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378073841 = 2923415569
BaseRepresentation
bin10110100010001…
…111001011110001
3222100102010210212
4112202033023301
51233241330331
6101303233505
712240401045
oct2642171361
9870363725
10378073841
1118445a522
12a6748895
1360435542
14382d8025
15232d1d2b
hex1688f2f1

378073841 has 8 divisors (see below), whose sum is σ = 391348200. Its totient is φ = 364815360.

The previous prime is 378073777. The next prime is 378073847. The reversal of 378073841 is 148370873.

It can be written as a sum of positive squares in 4 ways, for example, as 35046400 + 343027441 = 5920^2 + 18521^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 378073841 - 26 = 378073777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378073847) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65105 + ... + 70673.

It is an arithmetic number, because the mean of its divisors is an integer number (48918525).

Almost surely, 2378073841 is an apocalyptic number.

It is an amenable number.

378073841 is a deficient number, since it is larger than the sum of its proper divisors (13274359).

378073841 is a wasteful number, since it uses less digits than its factorization.

378073841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7939.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 378073841 is about 19444.1209881033. The cubic root of 378073841 is about 723.0897574874.

The spelling of 378073841 in words is "three hundred seventy-eight million, seventy-three thousand, eight hundred forty-one".

Divisors: 1 29 2341 5569 67889 161501 13037029 378073841