Search a number
-
+
378506061 = 3317978317
BaseRepresentation
bin10110100011111…
…000101101001101
3222101020002201000
4112203320231031
51233344143221
6101320410513
712244151133
oct2643705515
9871202630
10378506061
1118472522a
12a6916a39
13605571ab
14383ab753
1523369e26
hex168f8b4d

378506061 has 16 divisors (see below), whose sum is σ = 563889600. Its totient is φ = 250924464.

The previous prime is 378506047. The next prime is 378506069. The reversal of 378506061 is 160605873.

It is not a de Polignac number, because 378506061 - 213 = 378497869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378506069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34326 + ... + 43991.

It is an arithmetic number, because the mean of its divisors is an integer number (35243100).

Almost surely, 2378506061 is an apocalyptic number.

It is an amenable number.

378506061 is a deficient number, since it is larger than the sum of its proper divisors (185383539).

378506061 is a wasteful number, since it uses less digits than its factorization.

378506061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78505 (or 78499 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 378506061 is about 19455.2322268330. The cubic root of 378506061 is about 723.3652017691.

The spelling of 378506061 in words is "three hundred seventy-eight million, five hundred six thousand, sixty-one".

Divisors: 1 3 9 27 179 537 1611 4833 78317 234951 704853 2114559 14018743 42056229 126168687 378506061