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545405253340 = 22538970103503
BaseRepresentation
bin1111110111111001010…
…11111011011011011100
31221010210020012120101011
413323330223323123130
532413442221101330
61054320011225004
754255436106263
oct7737453733334
91833706176334
10545405253340
111a033a057362
1289853148164
133c57bcbc69c
141c57d6235da
15e2c1e2182a
hex7efcafb6dc

545405253340 has 24 divisors (see below), whose sum is σ = 1148295395520. Its totient is φ = 217601270208.

The previous prime is 545405253317. The next prime is 545405253359. The reversal of 545405253340 is 43352504545.

It is a junction number, because it is equal to n+sod(n) for n = 545405253293 and 545405253302.

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, 35043972 + ... + 35059531.

It is an arithmetic number, because the mean of its divisors is an integer number (47845641480).

Almost surely, 2545405253340 is an apocalyptic number.

It is an amenable number.

545405253340 is an abundant number, since it is smaller than the sum of its proper divisors (602890142180).

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

545405253340 is a wasteful number, since it uses less digits than its factorization.

545405253340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70103901 (or 70103899 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 40.

Adding to 545405253340 its reverse (43352504545), we get a palindrome (588757757885).

The spelling of 545405253340 in words is "five hundred forty-five billion, four hundred five million, two hundred fifty-three thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 389 778 1556 1945 3890 7780 70103503 140207006 280414012 350517515 701035030 1402070060 27270262667 54540525334 109081050668 136351313335 272702626670 545405253340