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65500142 = 240181671
BaseRepresentation
bin1111100111011…
…1001111101110
311120020202022012
43321313033232
5113232001032
610255521222
71423512341
oct371671756
9146222265
1065500142
1133a78254
1219b29212
13107545a6
1489b0458
155b3c6b2
hex3e773ee

65500142 has 8 divisors (see below), whose sum is σ = 98496432. Its totient is φ = 32668000.

The previous prime is 65500139. The next prime is 65500151. The reversal of 65500142 is 24100556.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40034 + ... + 41637.

It is an arithmetic number, because the mean of its divisors is an integer number (12312054).

Almost surely, 265500142 is an apocalyptic number.

65500142 is a deficient number, since it is larger than the sum of its proper divisors (32996290).

65500142 is a wasteful number, since it uses less digits than its factorization.

65500142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82074.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 65500142 is about 8093.2158009039. The cubic root of 65500142 is about 403.1011902449.

Adding to 65500142 its reverse (24100556), we get a palindrome (89600698).

The spelling of 65500142 in words is "sixty-five million, five hundred thousand, one hundred forty-two".

Divisors: 1 2 401 802 81671 163342 32750071 65500142