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378776053 = 707953507
BaseRepresentation
bin10110100100111…
…010100111110101
3222101201211001201
4112210322213311
51233431313203
6101330252501
712246354235
oct2644724765
9871654051
10378776053
1118489a067
12a6a27131
1360620056
143843bcc5
15233bee1d
hex1693a9f5

378776053 has 4 divisors (see below), whose sum is σ = 378836640. Its totient is φ = 378715468.

The previous prime is 378776051. The next prime is 378776063. The reversal of 378776053 is 350677873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 378776053 - 21 = 378776051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 378775994 and 378776012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378776051) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 19675 + ... + 33832.

It is an arithmetic number, because the mean of its divisors is an integer number (94709160).

Almost surely, 2378776053 is an apocalyptic number.

It is an amenable number.

378776053 is a deficient number, since it is larger than the sum of its proper divisors (60587).

378776053 is an equidigital number, since it uses as much as digits as its factorization.

378776053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60586.

The product of its (nonzero) digits is 740880, while the sum is 46.

The square root of 378776053 is about 19462.1697916753. The cubic root of 378776053 is about 723.5371553334.

The spelling of 378776053 in words is "three hundred seventy-eight million, seven hundred seventy-six thousand, fifty-three".

Divisors: 1 7079 53507 378776053