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2830507919 = 19148974101
BaseRepresentation
bin1010100010110110…
…0001111110001111
321022021002200220122
42220231201332033
521244102223134
61144511335155
7130066630451
oct25055417617
97267080818
102830507919
111222825548
1266bb214bb
1336154c475
141cbcc62d1
1511876402e
hexa8b61f8f

2830507919 has 4 divisors (see below), whose sum is σ = 2979482040. Its totient is φ = 2681533800.

The previous prime is 2830507907. The next prime is 2830507937. The reversal of 2830507919 is 9197050382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2830507919 - 28 = 2830507663 is a prime.

It is a super-2 number, since 2×28305079192 = 16023550159043421122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2830507919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2830507319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74487032 + ... + 74487069.

It is an arithmetic number, because the mean of its divisors is an integer number (744870510).

Almost surely, 22830507919 is an apocalyptic number.

2830507919 is a deficient number, since it is larger than the sum of its proper divisors (148974121).

2830507919 is a wasteful number, since it uses less digits than its factorization.

2830507919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148974120.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 2830507919 is about 53202.5179761259. The cubic root of 2830507919 is about 1414.5602764067.

The spelling of 2830507919 in words is "two billion, eight hundred thirty million, five hundred seven thousand, nine hundred nineteen".

Divisors: 1 19 148974101 2830507919