[go: up one dir, main page]

Search a number
-
+
7948045 = 57232441
BaseRepresentation
bin11110010100011100001101
3112221210200001
4132110130031
54013314140
6442204301
7124362100
oct36243415
915853601
107948045
114539536
1227b3691
1318538b1
1410ac737
15a6ee9a
hex79470d

7948045 has 12 divisors (see below), whose sum is σ = 11095164. Its totient is φ = 5449920.

The previous prime is 7948037. The next prime is 7948049. The reversal of 7948045 is 5408497.

7948045 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5597956 + 2350089 = 2366^2 + 1533^2 .

It is not a de Polignac number, because 7948045 - 23 = 7948037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7947995 and 7948013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7948049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15976 + ... + 16465.

It is an arithmetic number, because the mean of its divisors is an integer number (924597).

Almost surely, 27948045 is an apocalyptic number.

It is an amenable number.

7948045 is a deficient number, since it is larger than the sum of its proper divisors (3147119).

7948045 is a wasteful number, since it uses less digits than its factorization.

7948045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32460 (or 32453 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 7948045 is about 2819.2277311349. The cubic root of 7948045 is about 199.5661010057.

The spelling of 7948045 in words is "seven million, nine hundred forty-eight thousand, forty-five".

Divisors: 1 5 7 35 49 245 32441 162205 227087 1135435 1589609 7948045