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83173986480 = 243513177012237
BaseRepresentation
bin100110101110110001…
…1100101000010110000
321221200112112021220210
41031131203211002300
52330320020031410
6102113135104120
76003062135334
oct1153543450260
9257615467823
1083173986480
1132301602102
1214152972040
137ac6896020
1440505117c4
15226be7e220
hex135d8e50b0

83173986480 has 320 divisors, whose sum is σ = 294557897088. Its totient is φ = 19233177600.

The previous prime is 83173986457. The next prime is 83173986491. The reversal of 83173986480 is 8468937138.

It is a self number, because there is not a number n which added to its sum of digits gives 83173986480.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37179922 + ... + 37182158.

Almost surely, 283173986480 is an apocalyptic number.

83173986480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83173986480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147278948544).

83173986480 is an abundant number, since it is smaller than the sum of its proper divisors (211383910608).

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

83173986480 is a wasteful number, since it uses less digits than its factorization.

83173986480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2984 (or 2978 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 83173986480 in words is "eighty-three billion, one hundred seventy-three million, nine hundred eighty-six thousand, four hundred eighty".