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545020311020 = 22531918539961
BaseRepresentation
bin1111110111001011011…
…11011111010111101100
31221002210101212110210012
413323211233133113230
532412200144423040
61054213500432352
754243053130413
oct7734557372754
91832711773705
10545020311020
111a0161836509
12897662486b8
133c51a320a73
141c54445c47a
15e29d234865
hex7ee5bdf5ec

545020311020 has 24 divisors (see below), whose sum is σ = 1144901465568. Its totient is φ = 217939779200.

The previous prime is 545020310977. The next prime is 545020311023. The reversal of 545020311020 is 20113020545.

It is not an unprimeable number, because it can be changed into a prime (545020311023) 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, 4206161 + ... + 4333800.

It is an arithmetic number, because the mean of its divisors is an integer number (47704227732).

Almost surely, 2545020311020 is an apocalyptic number.

It is an amenable number.

545020311020 is an abundant number, since it is smaller than the sum of its proper divisors (599881154548).

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

545020311020 is a wasteful number, since it uses less digits than its factorization.

545020311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8543161 (or 8543159 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 545020311020 its reverse (20113020545), we get a palindrome (565133331565).

The spelling of 545020311020 in words is "five hundred forty-five billion, twenty million, three hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 3191 6382 12764 15955 31910 63820 8539961 17079922 34159844 42699805 85399610 170799220 27251015551 54502031102 109004062204 136255077755 272510155510 545020311020