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1995001065 = 325401110557
BaseRepresentation
bin111011011101001…
…0100110011101001
312011000221112222100
41312322110303221
513041210013230
6525543444013
7100303141431
oct16672246351
95130845870
101995001065
11934142912
12478156609
1325a416c05
1414cd572c1
15ba226660
hex76e94ce9

1995001065 has 24 divisors (see below), whose sum is σ = 3466656648. Its totient is φ = 1061337600.

The previous prime is 1995001061. The next prime is 1995001067. The reversal of 1995001065 is 5601005991.

1995001065 is a `hidden beast` number, since 1 + 99 + 500 + 1 + 0 + 65 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 286997481 + 1708003584 = 16941^2 + 41328^2 .

It is not a de Polignac number, because 1995001065 - 22 = 1995001061 is a prime.

It is a super-2 number, since 2×19950010652 = 7960058498702268450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1995001061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37234 + ... + 73323.

It is an arithmetic number, because the mean of its divisors is an integer number (144444027).

Almost surely, 21995001065 is an apocalyptic number.

1995001065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1995001065 is a deficient number, since it is larger than the sum of its proper divisors (1471655583).

1995001065 is a wasteful number, since it uses less digits than its factorization.

1995001065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110969 (or 110966 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 36.

The square root of 1995001065 is about 44665.4347902268. The cubic root of 1995001065 is about 1258.8704635337.

The spelling of 1995001065 in words is "one billion, nine hundred ninety-five million, one thousand, sixty-five".