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64142310 = 2354745491
BaseRepresentation
bin1111010010101…
…1101111100110
311110200202201010
43310223233212
5112410023220
610210443050
71406125551
oct364535746
9143622633
1064142310
1133230081
1219593486
131039a53b
148739698
1559701e0
hex3d2bbe6

64142310 has 32 divisors (see below), whose sum is σ = 157220352. Its totient is φ = 16740320.

The previous prime is 64142279. The next prime is 64142311. The reversal of 64142310 is 1324146.

It is a super-2 number, since 2×641423102 = 8228471864272200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64142311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21336 + ... + 24155.

It is an arithmetic number, because the mean of its divisors is an integer number (4913136).

Almost surely, 264142310 is an apocalyptic number.

64142310 is an abundant number, since it is smaller than the sum of its proper divisors (93078042).

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

64142310 is a wasteful number, since it uses less digits than its factorization.

64142310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45548.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 64142310 is about 8008.8894361203. The cubic root of 64142310 is about 400.2962596880.

Adding to 64142310 its reverse (1324146), we get a palindrome (65466456).

The spelling of 64142310 in words is "sixty-four million, one hundred forty-two thousand, three hundred ten".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 45491 90982 136473 227455 272946 454910 682365 1364730 2138077 4276154 6414231 10690385 12828462 21380770 32071155 64142310