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80120832 = 2103112371
BaseRepresentation
bin1001100011010…
…00110000000000
312120202120010020
410301220300000
5131002331312
611541133440
71662005301
oct461506000
9176676106
1080120832
1141253a70
12229ba280
13137a339c
14a8d87a8
15707978c
hex4c68c00

80120832 has 88 divisors (see below), whose sum is σ = 233063232. Its totient is φ = 24268800.

The previous prime is 80120819. The next prime is 80120837. The reversal of 80120832 is 23802108.

It is a tau number, because it is divible by the number of its divisors (88).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (80120837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32607 + ... + 34977.

Almost surely, 280120832 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 80120832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116531616).

80120832 is an abundant number, since it is smaller than the sum of its proper divisors (152942400).

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

80120832 is a wasteful number, since it uses less digits than its factorization.

80120832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2405 (or 2387 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 80120832 is about 8951.0240754899. The cubic root of 80120832 is about 431.1037660877.

The spelling of 80120832 in words is "eighty million, one hundred twenty thousand, eight hundred thirty-two".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 128 132 176 192 256 264 352 384 512 528 704 768 1024 1056 1408 1536 2112 2371 2816 3072 4224 4742 5632 7113 8448 9484 11264 14226 16896 18968 26081 28452 33792 37936 52162 56904 75872 78243 104324 113808 151744 156486 208648 227616 303488 312972 417296 455232 606976 625944 834592 910464 1213952 1251888 1669184 1820928 2427904 2503776 3338368 3641856 5007552 6676736 7283712 10015104 13353472 20030208 26706944 40060416 80120832