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16112140 = 2251173237
BaseRepresentation
bin111101011101…
…101000001100
31010022120200221
4331131220030
513111042030
61333201124
7253644112
oct75355014
933276627
1016112140
119105320
1254901a4
133451915
1421d5ab2
151633e7a
hexf5da0c

16112140 has 24 divisors (see below), whose sum is σ = 36911952. Its totient is φ = 5858880.

The previous prime is 16112119. The next prime is 16112149. The reversal of 16112140 is 4121161.

It is not an unprimeable number, because it can be changed into a prime (16112149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36399 + ... + 36838.

It is an arithmetic number, because the mean of its divisors is an integer number (1537998).

Almost surely, 216112140 is an apocalyptic number.

16112140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16112140 is an abundant number, since it is smaller than the sum of its proper divisors (20799812).

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

16112140 is a wasteful number, since it uses less digits than its factorization.

16112140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73257 (or 73255 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 16112140 is about 4013.9930244085. The cubic root of 16112140 is about 252.5715380739.

It can be divided in two parts, 161121 and 40, that added together give a palindrome (161161).

The spelling of 16112140 in words is "sixteen million, one hundred twelve thousand, one hundred forty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 73237 146474 292948 366185 732370 805607 1464740 1611214 3222428 4028035 8056070 16112140