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16142140 = 2257115301
BaseRepresentation
bin111101100100…
…111100111100
31010101002212001
4331210330330
513113022030
61333552044
7254130430
oct75447474
933332761
1016142140
119125913
1254a5624
133462481
1422029c0
15163ccca
hexf64f3c

16142140 has 24 divisors (see below), whose sum is σ = 38741472. Its totient is φ = 5534400.

The previous prime is 16142107. The next prime is 16142141. The reversal of 16142140 is 4124161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16142141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57511 + ... + 57790.

It is an arithmetic number, because the mean of its divisors is an integer number (1614228).

Almost surely, 216142140 is an apocalyptic number.

16142140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16142140 is an abundant number, since it is smaller than the sum of its proper divisors (22599332).

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

16142140 is a wasteful number, since it uses less digits than its factorization.

16142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115317 (or 115315 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 16142140 is about 4017.7282138044. The cubic root of 16142140 is about 252.7281994122.

The spelling of 16142140 in words is "sixteen million, one hundred forty-two thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 115301 230602 461204 576505 807107 1153010 1614214 2306020 3228428 4035535 8071070 16142140