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64953495 = 3451923367
BaseRepresentation
bin1111011111000…
…1110010010111
311112012222110000
43313301302113
5113112002440
610240102343
71416044535
oct367616227
9145188400
1064953495
1133734582
12199049b3
13105c2829
1488ab155
155a80730
hex3df1c97

64953495 has 80 divisors (see below), whose sum is σ = 128240640. Its totient is φ = 31306176.

The previous prime is 64953439. The next prime is 64953503. The reversal of 64953495 is 59435946.

It is not a de Polignac number, because 64953495 - 27 = 64953367 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 64953495.

It is a congruent number.

It is an unprimeable number.

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 79 ways as a sum of consecutive naturals, for example, 176802 + ... + 177168.

It is an arithmetic number, because the mean of its divisors is an integer number (1603008).

Almost surely, 264953495 is an apocalyptic number.

64953495 is a deficient number, since it is larger than the sum of its proper divisors (63287145).

64953495 is a wasteful number, since it uses less digits than its factorization.

64953495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 417 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 64953495 is about 8059.3731145791. The cubic root of 64953495 is about 401.9766638269.

The spelling of 64953495 in words is "sixty-four million, nine hundred fifty-three thousand, four hundred ninety-five".

Divisors: 1 3 5 9 15 19 23 27 45 57 69 81 95 115 135 171 207 285 345 367 405 437 513 621 855 1035 1101 1311 1539 1835 1863 2185 2565 3105 3303 3933 5505 6555 6973 7695 8441 9315 9909 11799 16515 19665 20919 25323 29727 34865 35397 42205 49545 58995 62757 75969 104595 126615 148635 160379 176985 188271 227907 313785 379845 481137 564813 683721 801895 941355 1139535 1443411 2405685 2824065 3418605 4330233 7217055 12990699 21651165 64953495