Search a number
-
+
5456840 = 235136421
BaseRepresentation
bin10100110100001111001000
3101021020101012
4110310033020
52344104330
6312543052
764245104
oct24641710
911236335
105456840
113097894
1219b1a88
1311909cc
14a20904
1572bc95
hex5343c8

5456840 has 16 divisors (see below), whose sum is σ = 12277980. Its totient is φ = 2182720.

The previous prime is 5456839. The next prime is 5456861. The reversal of 5456840 is 486545.

It can be written as a sum of positive squares in 2 ways, for example, as 4813636 + 643204 = 2194^2 + 802^2 .

It is a junction number, because it is equal to n+sod(n) for n = 5456797 and 5456806.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68171 + ... + 68250.

Almost surely, 25456840 is an apocalyptic number.

It is an amenable number.

5456840 is an abundant number, since it is smaller than the sum of its proper divisors (6821140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5456840 is a wasteful number, since it uses less digits than its factorization.

5456840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136432 (or 136428 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 5456840 is about 2335.9880136679. The cubic root of 5456840 is about 176.0544769378.

The spelling of 5456840 in words is "five million, four hundred fifty-six thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 136421 272842 545684 682105 1091368 1364210 2728420 5456840