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16612490 = 251661249
BaseRepresentation
bin111111010111…
…110010001010
31011021000001102
4333113302022
513223044430
61352021402
7261126626
oct77276212
934230042
1016612490
119417234
125691862
13359859b
1422c6186
1516d2345
hexfd7c8a

16612490 has 8 divisors (see below), whose sum is σ = 29902500. Its totient is φ = 6644992.

The previous prime is 16612481. The next prime is 16612501. The reversal of 16612490 is 9421661.

It can be written as a sum of positive squares in 2 ways, for example, as 16394401 + 218089 = 4049^2 + 467^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830615 + ... + 830634.

Almost surely, 216612490 is an apocalyptic number.

16612490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16612490 is a deficient number, since it is larger than the sum of its proper divisors (13290010).

16612490 is a wasteful number, since it uses less digits than its factorization.

16612490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661256.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 16612490 is about 4075.8422442484. The cubic root of 16612490 is about 255.1594030901.

The spelling of 16612490 in words is "sixteen million, six hundred twelve thousand, four hundred ninety".

Divisors: 1 2 5 10 1661249 3322498 8306245 16612490