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65345142 = 23191493847
BaseRepresentation
bin1111100101000…
…1011001110110
311112221212200110
43321101121312
5113212021032
610252323450
71422265422
oct371213166
9145855613
1065345142
1133981855
1219a73586
13106cbb85
14896db82
155b0b7cc
hex3e51676

65345142 has 32 divisors (see below), whose sum is σ = 138528000. Its totient is φ = 20491488.

The previous prime is 65345141. The next prime is 65345171. The reversal of 65345142 is 24154356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65345141) 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, 15063 + ... + 18909.

It is an arithmetic number, because the mean of its divisors is an integer number (4329000).

Almost surely, 265345142 is an apocalyptic number.

65345142 is an abundant number, since it is smaller than the sum of its proper divisors (73182858).

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

65345142 is a wasteful number, since it uses less digits than its factorization.

65345142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020.

The product of its digits is 14400, while the sum is 30.

The square root of 65345142 is about 8083.6342074589. The cubic root of 65345142 is about 402.7829719307.

Adding to 65345142 its reverse (24154356), we get a palindrome (89499498).

The spelling of 65345142 in words is "sixty-five million, three hundred forty-five thousand, one hundred forty-two".

Divisors: 1 2 3 6 19 38 57 114 149 298 447 894 2831 3847 5662 7694 8493 11541 16986 23082 73093 146186 219279 438558 573203 1146406 1719609 3439218 10890857 21781714 32672571 65345142