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65148141 = 321716047
BaseRepresentation
bin1111100010000…
…1010011101101
311112120212110010
43320201103231
5113134220031
610244203433
71420515162
oct370412355
9145525403
1065148141
1133857843
1219999579
13106602c6
14891c069
155abd246
hex3e214ed

65148141 has 4 divisors (see below), whose sum is σ = 86864192. Its totient is φ = 43432092.

The previous prime is 65148137. The next prime is 65148173. The reversal of 65148141 is 14184156.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 65148141 - 22 = 65148137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 65148099 and 65148108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65148191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10858021 + ... + 10858026.

It is an arithmetic number, because the mean of its divisors is an integer number (21716048).

Almost surely, 265148141 is an apocalyptic number.

It is an amenable number.

65148141 is a deficient number, since it is larger than the sum of its proper divisors (21716051).

65148141 is a wasteful number, since it uses less digits than its factorization.

65148141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21716050.

The product of its digits is 3840, while the sum is 30.

The square root of 65148141 is about 8071.4398343790. The cubic root of 65148141 is about 402.3777976050.

The spelling of 65148141 in words is "sixty-five million, one hundred forty-eight thousand, one hundred forty-one".

Divisors: 1 3 21716047 65148141