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65448942 = 23131276607
BaseRepresentation
bin1111100110101…
…0101111101110
311120011011001220
43321222233232
5113223331232
610254444210
71423210146
oct371525756
9146134056
1065448942
1133a42839
1219b03666
13107371b0
148999926
155b2c42c
hex3e6abee

65448942 has 32 divisors (see below), whose sum is σ = 142098432. Its totient is φ = 19976544.

The previous prime is 65448937. The next prime is 65448947. The reversal of 65448942 is 24984456.

It is an interprime number because it is at equal distance from previous prime (65448937) and next prime (65448947).

It is a junction number, because it is equal to n+sod(n) for n = 65448894 and 65448903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65448947) 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, 6603 + ... + 13209.

It is an arithmetic number, because the mean of its divisors is an integer number (4440576).

Almost surely, 265448942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65448942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71049216).

65448942 is an abundant number, since it is smaller than the sum of its proper divisors (76649490).

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

65448942 is a wasteful number, since it uses less digits than its factorization.

65448942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6752.

The product of its digits is 276480, while the sum is 42.

The square root of 65448942 is about 8090.0520393876. The cubic root of 65448942 is about 402.9961311296.

The spelling of 65448942 in words is "sixty-five million, four hundred forty-eight thousand, nine hundred forty-two".

Divisors: 1 2 3 6 13 26 39 78 127 254 381 762 1651 3302 4953 6607 9906 13214 19821 39642 85891 171782 257673 515346 839089 1678178 2517267 5034534 10908157 21816314 32724471 65448942