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1995060121 = 4349679341
BaseRepresentation
bin111011011101010…
…0011001110011001
312011001001112222121
41312322203032121
513041213410441
6525545021241
7100303505545
oct16672431631
95131045877
101995060121
1193418321a
12478184821
1325a437a62
1414cd70a25
15ba238dd1
hex76ea3399

1995060121 has 8 divisors (see below), whose sum is σ = 2042086464. Its totient is φ = 1948062480.

The previous prime is 1995060103. The next prime is 1995060187. The reversal of 1995060121 is 1210605991.

It is a happy number.

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 1995060121 - 217 = 1994929049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1995360121) 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, 208911 + ... + 218251.

It is an arithmetic number, because the mean of its divisors is an integer number (255260808).

Almost surely, 21995060121 is an apocalyptic number.

It is an amenable number.

1995060121 is a deficient number, since it is larger than the sum of its proper divisors (47026343).

1995060121 is an equidigital number, since it uses as much as digits as its factorization.

1995060121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14351.

The product of its (nonzero) digits is 4860, while the sum is 34.

The square root of 1995060121 is about 44666.0958781938. The cubic root of 1995060121 is about 1258.8828851011.

The spelling of 1995060121 in words is "one billion, nine hundred ninety-five million, sixty thousand, one hundred twenty-one".

Divisors: 1 43 4967 9341 213581 401663 46396747 1995060121