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645141302215 = 5131984948553
BaseRepresentation
bin10010110001101010110…
…10110000101111000111
32021200020000011210202021
421120311122300233013
541032222133132330
61212212425024011
764416126406054
oct11306532605707
92250200153667
10645141302215
1122966a4a0033
12a5048625007
1348ab4c13617
14233215b602b
1511bacdbd67a
hex96356b0bc7

645141302215 has 8 divisors (see below), whose sum is σ = 780079254768. Its totient is φ = 512173247040.

The previous prime is 645141302161. The next prime is 645141302227. The reversal of 645141302215 is 512203141546.

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

It is a de Polignac number, because none of the positive numbers 2k-645141302215 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 492473622 + ... + 492474931.

It is an arithmetic number, because the mean of its divisors is an integer number (97509906846).

Almost surely, 2645141302215 is an apocalyptic number.

645141302215 is a deficient number, since it is larger than the sum of its proper divisors (134937952553).

645141302215 is a wasteful number, since it uses less digits than its factorization.

645141302215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984948689.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 645141302215 in words is "six hundred forty-five billion, one hundred forty-one million, three hundred two thousand, two hundred fifteen".

Divisors: 1 5 131 655 984948553 4924742765 129028260443 645141302215