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16248140 = 2252633089
BaseRepresentation
bin111101111110…
…110101001100
31010120111020222
4331332311030
513124420030
61340130512
7255051446
oct75766514
933514228
1016248140
119198517
125536a38
13349b7ac
14222d496
15165e3e5
hexf7ed4c

16248140 has 24 divisors (see below), whose sum is σ = 34261920. Its totient is φ = 6472448.

The previous prime is 16248139. The next prime is 16248181. The reversal of 16248140 is 4184261.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3716 + ... + 6804.

It is an arithmetic number, because the mean of its divisors is an integer number (1427580).

Almost surely, 216248140 is an apocalyptic number.

16248140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16248140 is an abundant number, since it is smaller than the sum of its proper divisors (18013780).

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

16248140 is a wasteful number, since it uses less digits than its factorization.

16248140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3361 (or 3359 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 16248140 is about 4030.8981629409. The cubic root of 16248140 is about 253.2801866043.

The spelling of 16248140 in words is "sixteen million, two hundred forty-eight thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 263 526 1052 1315 2630 3089 5260 6178 12356 15445 30890 61780 812407 1624814 3249628 4062035 8124070 16248140