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29078080 = 265891021
BaseRepresentation
bin110111011101…
…1001001000000
32000201022121221
41232323021000
524420444310
62515124424
7502105513
oct156731100
960638557
1029078080
1115460879
1298a3714
136041485
143c0cd7a
152845ada
hex1bbb240

29078080 has 56 divisors (see below), whose sum is σ = 70088760. Its totient is φ = 11489280.

The previous prime is 29078057. The next prime is 29078081. The reversal of 29078080 is 8087092.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1115136 + 27962944 = 1056^2 + 5288^2 .

It is not an unprimeable number, because it can be changed into a prime (29078081) 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, 27970 + ... + 28990.

It is an arithmetic number, because the mean of its divisors is an integer number (1251585).

Almost surely, 229078080 is an apocalyptic number.

29078080 is a gapful number since it is divisible by the number (20) 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 29078080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35044380).

29078080 is an abundant number, since it is smaller than the sum of its proper divisors (41010680).

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

29078080 is a wasteful number, since it uses less digits than its factorization.

29078080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1127 (or 1117 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 29078080 is about 5392.4094800006. The cubic root of 29078080 is about 307.5071670835.

The spelling of 29078080 in words is "twenty-nine million, seventy-eight thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 64 80 89 160 178 320 356 445 712 890 1021 1424 1780 2042 2848 3560 4084 5105 5696 7120 8168 10210 14240 16336 20420 28480 32672 40840 65344 81680 90869 163360 181738 326720 363476 454345 726952 908690 1453904 1817380 2907808 3634760 5815616 7269520 14539040 29078080