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6390019051 = 131932546839
BaseRepresentation
bin1011111001101111…
…11111001111101011
3121111022221121020021
411330313333033223
5101041321102201
62534024141311
7314231160103
oct57467771753
917438847207
106390019051
112789aa9989
1212a4007837
137aab24380
14448936203
15275ec8ea1
hex17cdff3eb

6390019051 has 8 divisors (see below), whose sum is σ = 6917217440. Its totient is φ = 5867914752.

The previous prime is 6390019039. The next prime is 6390019079. The reversal of 6390019051 is 1509100936.

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 6390019051 - 27 = 6390018923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6390018998 and 6390019016.

It is not an unprimeable number, because it can be changed into a prime (6390019021) 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, 1270911 + ... + 1275928.

It is an arithmetic number, because the mean of its divisors is an integer number (864652180).

Almost surely, 26390019051 is an apocalyptic number.

6390019051 is a deficient number, since it is larger than the sum of its proper divisors (527198389).

6390019051 is a wasteful number, since it uses less digits than its factorization.

6390019051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2547045.

The product of its (nonzero) digits is 7290, while the sum is 34.

The square root of 6390019051 is about 79937.5947286382. The cubic root of 6390019051 is about 1855.6698758361.

Adding to 6390019051 its reverse (1509100936), we get a palindrome (7899119987).

The spelling of 6390019051 in words is "six billion, three hundred ninety million, nineteen thousand, fifty-one".

Divisors: 1 13 193 2509 2546839 33108907 491539927 6390019051