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80964080 = 2454761353
BaseRepresentation
bin1001101001101…
…10100111110000
312122100101211122
410310312213300
5131211322310
612011201412
72002116611
oct464664760
9178311748
1080964080
114177a56a
1223146268
1313a0a152
14aa77c08
157194555
hex4d369f0

80964080 has 80 divisors (see below), whose sum is σ = 195951744. Its totient is φ = 31088640.

The previous prime is 80964049. The next prime is 80964089. The reversal of 80964080 is 8046908.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 80964080.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80964089) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229184 + ... + 229536.

Almost surely, 280964080 is an apocalyptic number.

80964080 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 80964080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97975872).

80964080 is an abundant number, since it is smaller than the sum of its proper divisors (114987664).

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

80964080 is a wasteful number, since it uses less digits than its factorization.

80964080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 80964080 is about 8998.0042231597. The cubic root of 80964080 is about 432.6109040993.

The spelling of 80964080 in words is "eighty million, nine hundred sixty-four thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 40 47 61 80 94 122 188 235 244 305 353 376 470 488 610 706 752 940 976 1220 1412 1765 1880 2440 2824 2867 3530 3760 4880 5648 5734 7060 11468 14120 14335 16591 21533 22936 28240 28670 33182 43066 45872 57340 66364 82955 86132 107665 114680 132728 165910 172264 215330 229360 265456 331820 344528 430660 663640 861320 1012051 1327280 1722640 2024102 4048204 5060255 8096408 10120510 16192816 20241020 40482040 80964080