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378072473 = 478778979
BaseRepresentation
bin10110100010001…
…110110110011001
3222100102001221012
4112202032312121
51233241304343
6101303223305
712240364052
oct2642166631
9870361835
10378072473
11184459499
12a6747b35
1360434a2c
14382d7729
15232d1718
hex1688ed99

378072473 has 4 divisors (see below), whose sum is σ = 378156240. Its totient is φ = 377988708.

The previous prime is 378072377. The next prime is 378072481. The reversal of 378072473 is 374270873.

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 378072473 - 212 = 378068377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378072473.

It is not an unprimeable number, because it can be changed into a prime (378072493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34703 + ... + 44276.

It is an arithmetic number, because the mean of its divisors is an integer number (94539060).

Almost surely, 2378072473 is an apocalyptic number.

It is an amenable number.

378072473 is a deficient number, since it is larger than the sum of its proper divisors (83767).

378072473 is an equidigital number, since it uses as much as digits as its factorization.

378072473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83766.

The product of its (nonzero) digits is 197568, while the sum is 41.

The square root of 378072473 is about 19444.0858103435. The cubic root of 378072473 is about 723.0888853580.

The spelling of 378072473 in words is "three hundred seventy-eight million, seventy-two thousand, four hundred seventy-three".

Divisors: 1 4787 78979 378072473