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7990200001 = 71141457143
BaseRepresentation
bin1110111000100000…
…01100011011000001
3202121211222012211101
413130100030123001
5112330442400001
63400505414401
7402001402510
oct73420143301
922554865741
107990200001
113430294583
12166ba9a401
139a44c15c4
1455b276677
1531b711a01
hex1dc40c6c1

7990200001 has 4 divisors (see below), whose sum is σ = 9131657152. Its totient is φ = 6848742852.

The previous prime is 7990199999. The next prime is 7990200083. The reversal of 7990200001 is 1000020997.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 7990200001 - 21 = 7990199999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7990200401) 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, 570728565 + ... + 570728578.

It is an arithmetic number, because the mean of its divisors is an integer number (2282914288).

Almost surely, 27990200001 is an apocalyptic number.

It is an amenable number.

7990200001 is a deficient number, since it is larger than the sum of its proper divisors (1141457151).

7990200001 is a wasteful number, since it uses less digits than its factorization.

7990200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141457150.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 7990200001 is about 89387.9186523548. The cubic root of 7990200001 is about 1999.1829997174.

Adding to 7990200001 its reverse (1000020997), we get a palindrome (8990220998).

The spelling of 7990200001 in words is "seven billion, nine hundred ninety million, two hundred thousand, one".

Divisors: 1 7 1141457143 7990200001