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2142023349 = 31972751691
BaseRepresentation
bin111111110101100…
…1010111010110101
312112021121001122010
41333223022322311
513341324221344
6552314554433
7104036620014
oct17753127265
95467531563
102142023349
119aa130934
124b9438a19
13281a1264b
141646a8a7b
15c80b88b9
hex7facaeb5

2142023349 has 16 divisors (see below), whose sum is σ = 3010542080. Its totient is φ = 1350969840.

The previous prime is 2142023347. The next prime is 2142023417. The reversal of 2142023349 is 9433202412.

It is not a de Polignac number, because 2142023349 - 21 = 2142023347 is a prime.

It is a super-2 number, since 2×21420233492 = 9176528055322351602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142023347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15594 + ... + 67284.

It is an arithmetic number, because the mean of its divisors is an integer number (188158880).

Almost surely, 22142023349 is an apocalyptic number.

It is an amenable number.

2142023349 is a deficient number, since it is larger than the sum of its proper divisors (868518731).

2142023349 is a wasteful number, since it uses less digits than its factorization.

2142023349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52440.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 2142023349 is about 46281.9981094161. The cubic root of 2142023349 is about 1289.0647526746.

The spelling of 2142023349 in words is "two billion, one hundred forty-two million, twenty-three thousand, three hundred forty-nine".

Divisors: 1 3 19 57 727 2181 13813 41439 51691 155073 982129 2946387 37579357 112738071 714007783 2142023349