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80827454644 = 2226099774239
BaseRepresentation
bin100101101000110110…
…0010001010010110100
321201122000010010101021
41023101230101102310
52311013312022034
6101044232510524
75560660012546
oct1132154212264
9251560103337
1080827454644
1131307a99aa2
12137b8b4b444
1378116ab251
143caaa0d696
152180e6a6b4
hex12d1b114b4

80827454644 has 12 divisors (see below), whose sum is σ = 141453648000. Its totient is φ = 40412126648.

The previous prime is 80827454641. The next prime is 80827454647. The reversal of 80827454644 is 44645472808.

It is an interprime number because it is at equal distance from previous prime (80827454641) and next prime (80827454647).

It is a junction number, because it is equal to n+sod(n) for n = 80827454591 and 80827454600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80827454641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282724 + ... + 491515.

It is an arithmetic number, because the mean of its divisors is an integer number (11787804000).

Almost surely, 280827454644 is an apocalyptic number.

It is an amenable number.

80827454644 is a deficient number, since it is larger than the sum of its proper divisors (60626193356).

80827454644 is a wasteful number, since it uses less digits than its factorization.

80827454644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800342 (or 800340 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 52.

The spelling of 80827454644 in words is "eighty billion, eight hundred twenty-seven million, four hundred fifty-four thousand, six hundred forty-four".

Divisors: 1 2 4 26099 52198 104396 774239 1548478 3096956 20206863661 40413727322 80827454644