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80578303050520 = 23511679763144657
BaseRepresentation
bin10010010100100100011001…
…001000010100001100011000
3101120022012200111001211210201
4102110210121020110030120
541030143331040104040
6443213054505551544
722654406316003022
oct2224443110241430
9346265614054721
1080578303050520
1123747080444430
1290547467a55b4
1335c6669695b82
1415c8021423012
1594b05ea8aa9a
hex494919214318

80578303050520 has 256 divisors, whose sum is σ = 203130478494720. Its totient is φ = 28520393932800.

The previous prime is 80578303050407. The next prime is 80578303050521. The reversal of 80578303050520 is 2505030387508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80578303050521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1804360032 + ... + 1804404688.

It is an arithmetic number, because the mean of its divisors is an integer number (793478431620).

Almost surely, 280578303050520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80578303050520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101565239247360).

80578303050520 is an abundant number, since it is smaller than the sum of its proper divisors (122552175444200).

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

80578303050520 is a wasteful number, since it uses less digits than its factorization.

80578303050520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45474 (or 45470 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 80578303050520 in words is "eighty trillion, five hundred seventy-eight billion, three hundred three million, fifty thousand, five hundred twenty".