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450513032131 = 8312014519457
BaseRepresentation
bin1101000111001001010…
…10110101001111000011
31121001212000202021101201
412203210222311033003
524340122314012011
6542543545442031
744356063406161
oct6434452651703
91531760667351
10450513032131
11164074953048
127338baa0317
1333638776b76
1417b3aabc231
15babb32ccc1
hex68e4ab53c3

450513032131 has 8 divisors (see below), whose sum is σ = 456320635344. Its totient is φ = 444714470400.

The previous prime is 450513032071. The next prime is 450513032173. The reversal of 450513032131 is 131230315054.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-450513032131 is a prime.

It is a super-2 number, since 2×4505130321312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 450513032131.

It is not an unprimeable number, because it can be changed into a prime (450513032531) 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, 2160046 + ... + 2359411.

It is an arithmetic number, because the mean of its divisors is an integer number (57040079418).

Almost surely, 2450513032131 is an apocalyptic number.

450513032131 is a deficient number, since it is larger than the sum of its proper divisors (5807603213).

450513032131 is a wasteful number, since it uses less digits than its factorization.

450513032131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4520741.

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 450513032131 its reverse (131230315054), we get a palindrome (581743347185).

The spelling of 450513032131 in words is "four hundred fifty billion, five hundred thirteen million, thirty-two thousand, one hundred thirty-one".

Divisors: 1 83 1201 99683 4519457 375114931 5427867857 450513032131