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80291088 = 2435107193
BaseRepresentation
bin1001100100100…
…10010100010000
312121002012200000
410302102110100
5131023303323
611544530000
71663314543
oct462222420
9177065600
1080291088
114135a979
1222a80900
1313832a27
14a94085a
1570aee43
hex4c92510

80291088 has 120 divisors (see below), whose sum is σ = 236422368. Its totient is φ = 26376192.

The previous prime is 80291069. The next prime is 80291089. The reversal of 80291088 is 88019208.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80291089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415920 + ... + 416112.

Almost surely, 280291088 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 80291088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118211184).

80291088 is an abundant number, since it is smaller than the sum of its proper divisors (156131280).

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

80291088 is a wasteful number, since it uses less digits than its factorization.

80291088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 80291088 is about 8960.5294486431. The cubic root of 80291088 is about 431.4089138345.

The spelling of 80291088 in words is "eighty million, two hundred ninety-one thousand, eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 81 107 108 144 162 193 214 216 243 321 324 386 428 432 486 579 642 648 772 856 963 972 1158 1284 1296 1544 1712 1737 1926 1944 2316 2568 2889 3088 3474 3852 3888 4632 5136 5211 5778 6948 7704 8667 9264 10422 11556 13896 15408 15633 17334 20651 20844 23112 26001 27792 31266 34668 41302 41688 46224 46899 52002 61953 62532 69336 82604 83376 93798 104004 123906 125064 138672 165208 185859 187596 208008 247812 250128 330416 371718 375192 416016 495624 557577 743436 750384 991248 1115154 1486872 1672731 2230308 2973744 3345462 4460616 5018193 6690924 8921232 10036386 13381848 20072772 26763696 40145544 80291088