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80142767040 = 2635743535233
BaseRepresentation
bin100101010100011100…
…0011001001111000000
321122212021202101120010
41022220320121033000
52303113022021130
6100452253344520
75535004165020
oct1125070311700
9248767671503
1080142767040
1130a96559076
1213647798140
1377328a075b
143c43adda80
152140cc00b0
hex12a8e193c0

80142767040 has 448 divisors, whose sum is σ = 303239033856. Its totient is φ = 17551392768.

The previous prime is 80142767009. The next prime is 80142767053. The reversal of 80142767040 is 4076724108.

It is a tau number, because it is divible by the number of its divisors (448).

It is a self number, because there is not a number n which added to its sum of digits gives 80142767040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15312264 + ... + 15317496.

Almost surely, 280142767040 is an apocalyptic number.

80142767040 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 80142767040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151619516928).

80142767040 is an abundant number, since it is smaller than the sum of its proper divisors (223096266816).

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

80142767040 is a wasteful number, since it uses less digits than its factorization.

80142767040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5356 (or 5346 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 80142767040 in words is "eighty billion, one hundred forty-two million, seven hundred sixty-seven thousand, forty".