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60406420 = 22529104149
BaseRepresentation
bin1110011001101…
…1101010010100
311012122222000211
43212123222110
5110431001140
65554415204
71332306004
oct346335224
9135588024
1060406420
1131109268
1218291504
13c68cc59
148046004
1554832ea
hex399ba94

60406420 has 24 divisors (see below), whose sum is σ = 131229000. Its totient is φ = 23329152.

The previous prime is 60406403. The next prime is 60406427. The reversal of 60406420 is 2460406.

It can be written as a sum of positive squares in 4 ways, for example, as 16793604 + 43612816 = 4098^2 + 6604^2 .

It is a junction number, because it is equal to n+sod(n) for n = 60406391 and 60406400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60406427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51495 + ... + 52654.

It is an arithmetic number, because the mean of its divisors is an integer number (5467875).

Almost surely, 260406420 is an apocalyptic number.

It is an amenable number.

60406420 is an abundant number, since it is smaller than the sum of its proper divisors (70822580).

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

60406420 is a wasteful number, since it uses less digits than its factorization.

60406420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104187 (or 104185 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 60406420 is about 7772.1567148379. The cubic root of 60406420 is about 392.3687093847.

Adding to 60406420 its reverse (2460406), we get a palindrome (62866826).

The spelling of 60406420 in words is "sixty million, four hundred six thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 104149 208298 416596 520745 1041490 2082980 3020321 6040642 12081284 15101605 30203210 60406420