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2830372123 = 61103450481
BaseRepresentation
bin1010100010110100…
…0000110100011011
321022020211210122011
42220231000310123
521244033401443
61144504410351
7130065523525
oct25055006433
97266753564
102830372123
111222742517
1266ba769b7
13361502707
141cbc8ca15
15118738b9d
hexa8b40d1b

2830372123 has 8 divisors (see below), whose sum is σ = 2904707936. Its totient is φ = 2756937600.

The previous prime is 2830372081. The next prime is 2830372151. The reversal of 2830372123 is 3212730382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2830372123 - 229 = 2293501211 is a prime.

It is a super-2 number, since 2×28303721232 = 16022012709311054258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2830375123) 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, 218958 + ... + 231523.

It is an arithmetic number, because the mean of its divisors is an integer number (363088492).

Almost surely, 22830372123 is an apocalyptic number.

2830372123 is a deficient number, since it is larger than the sum of its proper divisors (74335813).

2830372123 is a wasteful number, since it uses less digits than its factorization.

2830372123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450645.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 2830372123 is about 53201.2417430270. The cubic root of 2830372123 is about 1414.5376544716.

The spelling of 2830372123 in words is "two billion, eight hundred thirty million, three hundred seventy-two thousand, one hundred twenty-three".

Divisors: 1 61 103 6283 450481 27479341 46399543 2830372123