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2152014123 = 378310311987
BaseRepresentation
bin1000000001000101…
…0010000100101011
312112222101122101210
42000101102010223
513401403422443
6553313044203
7104220550440
oct20021220453
95488348353
102152014123
11a04835076
12500856663
13283accc4c
14165b499c7
15c8dddc33
hex8045212b

2152014123 has 32 divisors (see below), whose sum is σ = 3351269376. Its totient is φ = 1203010848.

The previous prime is 2152014121. The next prime is 2152014127. The reversal of 2152014123 is 3214102512.

It is not a de Polignac number, because 2152014123 - 21 = 2152014121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2152014123.

It is not an unprimeable number, because it can be changed into a prime (2152014121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 173536 + ... + 185522.

It is an arithmetic number, because the mean of its divisors is an integer number (104727168).

Almost surely, 22152014123 is an apocalyptic number.

2152014123 is a deficient number, since it is larger than the sum of its proper divisors (1199255253).

2152014123 is a wasteful number, since it uses less digits than its factorization.

2152014123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12183.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2152014123 is about 46389.8062401644. The cubic root of 2152014123 is about 1291.0657864818.

Adding to 2152014123 its reverse (3214102512), we get a palindrome (5366116635).

The spelling of 2152014123 in words is "two billion, one hundred fifty-two million, fourteen thousand, one hundred twenty-three".

Divisors: 1 3 7 21 83 103 249 309 581 721 1743 2163 8549 11987 25647 35961 59843 83909 179529 251727 994921 1234661 2984763 3703983 6964447 8642627 20893341 25927881 102476863 307430589 717338041 2152014123