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80370528 = 2537199601
BaseRepresentation
bin1001100101001…
…01101101100000
312121020020122020
410302211231200
5131033324103
611550341440
71664065260
oct462455540
9177206566
1080370528
1141404627
1222aba880
131385cc34
14a9617a0
1570c8753
hex4ca5b60

80370528 has 96 divisors (see below), whose sum is σ = 242726400. Its totient is φ = 22809600.

The previous prime is 80370523. The next prime is 80370529. The reversal of 80370528 is 82507308.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80370523) 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, 133428 + ... + 134028.

It is an arithmetic number, because the mean of its divisors is an integer number (2528400).

Almost surely, 280370528 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 80370528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121363200).

80370528 is an abundant number, since it is smaller than the sum of its proper divisors (162355872).

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

80370528 is a wasteful number, since it uses less digits than its factorization.

80370528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820 (or 812 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 80370528 is about 8964.9611265192. The cubic root of 80370528 is about 431.5511455921.

The spelling of 80370528 in words is "eighty million, three hundred seventy thousand, five hundred twenty-eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 199 224 336 398 597 601 672 796 1194 1202 1393 1592 1803 2388 2404 2786 3184 3606 4179 4207 4776 4808 5572 6368 7212 8358 8414 9552 9616 11144 12621 14424 16716 16828 19104 19232 22288 25242 28848 33432 33656 44576 50484 57696 66864 67312 100968 119599 133728 134624 201936 239198 358797 403872 478396 717594 837193 956792 1435188 1674386 1913584 2511579 2870376 3348772 3827168 5023158 5740752 6697544 10046316 11481504 13395088 20092632 26790176 40185264 80370528