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12090498 = 23719109139
BaseRepresentation
bin101110000111…
…110010000010
3211202021001020
4232013302002
511043343443
61111050310
7204524160
oct56076202
924667036
1012090498
116908852
124070996
132674254
14186a230
1510dc583
hexb87c82

12090498 has 64 divisors (see below), whose sum is σ = 29568000. Its totient is φ = 3219264.

The previous prime is 12090487. The next prime is 12090503. The reversal of 12090498 is 89409021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86913 + ... + 87051.

It is an arithmetic number, because the mean of its divisors is an integer number (462000).

Almost surely, 212090498 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12090498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14784000).

12090498 is an abundant number, since it is smaller than the sum of its proper divisors (17477502).

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

12090498 is a wasteful number, since it uses less digits than its factorization.

12090498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12090498 is about 3477.1393414702. The cubic root of 12090498 is about 229.5169319341.

The spelling of 12090498 in words is "twelve million, ninety thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 7 14 19 21 38 42 57 109 114 133 139 218 266 278 327 399 417 654 763 798 834 973 1526 1946 2071 2289 2641 2919 4142 4578 5282 5838 6213 7923 12426 14497 15151 15846 18487 28994 30302 36974 43491 45453 55461 86982 90906 106057 110922 212114 287869 318171 575738 636342 863607 1727214 2015083 4030166 6045249 12090498