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65425120 = 255461887
BaseRepresentation
bin1111100110010…
…0111011100000
311120002221101121
43321210323200
5113222100440
610254142024
71423050535
oct371447340
9146087347
1065425120
1133a26952
1219ab1914
13107293b7
148990d8c
155b2534a
hex3e64ee0

65425120 has 48 divisors (see below), whose sum is σ = 155076768. Its totient is φ = 26083840.

The previous prime is 65425117. The next prime is 65425121. The reversal of 65425120 is 2152456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65425121) 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, 73317 + ... + 74203.

It is an arithmetic number, because the mean of its divisors is an integer number (3230766).

Almost surely, 265425120 is an apocalyptic number.

It is an amenable number.

65425120 is an abundant number, since it is smaller than the sum of its proper divisors (89651648).

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

65425120 is a wasteful number, since it uses less digits than its factorization.

65425120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 65425120 is about 8088.5796033667. The cubic root of 65425120 is about 402.9472312364.

Adding to 65425120 its reverse (2152456), we get a palindrome (67577576).

The spelling of 65425120 in words is "sixty-five million, four hundred twenty-five thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 461 887 922 1774 1844 2305 3548 3688 4435 4610 7096 7376 8870 9220 14192 14752 17740 18440 28384 35480 36880 70960 73760 141920 408907 817814 1635628 2044535 3271256 4089070 6542512 8178140 13085024 16356280 32712560 65425120