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80091088 = 24721137251
BaseRepresentation
bin1001100011000…
…01011111010000
312120201001022121
410301201133100
5131000403323
611540344024
71661522500
oct461413720
9176631277
1080091088
1141233690
12229a5014
131379299c
14a8cba00
157070a5d
hex4c617d0

80091088 has 120 divisors (see below), whose sum is σ = 203049504. Its totient is φ = 30240000.

The previous prime is 80091079. The next prime is 80091091. The reversal of 80091088 is 88019008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318963 + ... + 319213.

Almost surely, 280091088 is an apocalyptic number.

80091088 is a gapful number since it is divisible by the number (88) 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 80091088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101524752).

80091088 is an abundant number, since it is smaller than the sum of its proper divisors (122958416).

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

80091088 is a wasteful number, since it uses less digits than its factorization.

80091088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 80091088 is about 8949.3624353917. The cubic root of 80091088 is about 431.0504119341.

The spelling of 80091088 in words is "eighty million, ninety-one thousand, eighty-eight".

Divisors: 1 2 4 7 8 11 14 16 22 28 37 44 49 56 74 77 88 98 112 148 154 176 196 251 259 296 308 392 407 502 518 539 592 616 784 814 1004 1036 1078 1232 1628 1757 1813 2008 2072 2156 2761 2849 3256 3514 3626 4016 4144 4312 5522 5698 6512 7028 7252 8624 9287 11044 11396 12299 14056 14504 18574 19327 19943 22088 22792 24598 28112 29008 37148 38654 39886 44176 45584 49196 65009 74296 77308 79772 98392 102157 130018 135289 148592 154616 159544 196784 204314 260036 270578 309232 319088 408628 455063 520072 541156 715099 817256 910126 1040144 1082312 1430198 1634512 1820252 2164624 2860396 3640504 5005693 5720792 7281008 10011386 11441584 20022772 40045544 80091088