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80570438928 = 243272173591871
BaseRepresentation
bin100101100001001011…
…1110101010100010000
321200222002111101002200
41023002113311110100
52310002013021203
6101002532043200
75551416300600
oct1130227652420
9250862441080
1080570438928
1131195a04311
1213746a63500
1377a0380445
143c84828c00
1521685ec9a3
hex12c25f5510

80570438928 has 360 divisors, whose sum is σ = 278651093760. Its totient is φ = 21594101760.

The previous prime is 80570438863. The next prime is 80570438953. The reversal of 80570438928 is 82983407508.

It is a happy number.

80570438928 is a `hidden beast` number, since 8 + 0 + 570 + 43 + 8 + 9 + 28 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 43061833 + ... + 43063703.

It is an arithmetic number, because the mean of its divisors is an integer number (774030816).

Almost surely, 280570438928 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 80570438928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139325546880).

80570438928 is an abundant number, since it is smaller than the sum of its proper divisors (198080654832).

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

80570438928 is a wasteful number, since it uses less digits than its factorization.

80570438928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275 (or 2259 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 80570438928 in words is "eighty billion, five hundred seventy million, four hundred thirty-eight thousand, nine hundred twenty-eight".