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65380744463 = 316134574693
BaseRepresentation
bin111100111000111111…
…101111110100001111
320020202111101221112012
4330320333233310033
52032344432310323
650011400131435
74503124105226
oct747077576417
9206674357465
1065380744463
11258007a9011
1210807a66b7b
13621c447a58
143243345cbd
151a79d17678
hexf38fefd0f

65380744463 has 8 divisors (see below), whose sum is σ = 68596192896. Its totient is φ = 62234445600.

The previous prime is 65380744459. The next prime is 65380744487. The reversal of 65380744463 is 36444708356.

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

It is a cyclic number.

It is not a de Polignac number, because 65380744463 - 22 = 65380744459 is a prime.

It is a super-2 number, since 2×653807444632 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65380744433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17285456 + ... + 17289237.

It is an arithmetic number, because the mean of its divisors is an integer number (8574524112).

Almost surely, 265380744463 is an apocalyptic number.

65380744463 is a deficient number, since it is larger than the sum of its proper divisors (3215448433).

65380744463 is a wasteful number, since it uses less digits than its factorization.

65380744463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34574785.

The product of its (nonzero) digits is 5806080, while the sum is 50.

The spelling of 65380744463 in words is "sixty-five billion, three hundred eighty million, seven hundred forty-four thousand, four hundred sixty-three".

Divisors: 1 31 61 1891 34574693 1071815483 2109056273 65380744463