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3999999900001 = 71098231636917
BaseRepresentation
bin111010001101010010100…
…100101011100101100001
3112011101200212111121202111
4322031102210223211201
51011013444433300001
612301324035515321
7561663504105430
oct72152244534541
915141625447674
103999999900001
111302432733526
12547287a58b41
13230276a92071
14db85b315117
156e0b0e8a851
hex3a35292b961

3999999900001 has 16 divisors (see below), whose sum is σ = 4613935898880. Its totient is φ = 3396698504640.

The previous prime is 3999999899963. The next prime is 3999999900007. The reversal of 3999999900001 is 1000099999993.

It is not a de Polignac number, because 3999999900001 - 223 = 3999991511393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3999999900001.

It is not an unprimeable number, because it can be changed into a prime (3999999900007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5961795 + ... + 6598711.

It is an arithmetic number, because the mean of its divisors is an integer number (288370993680).

Almost surely, 23999999900001 is an apocalyptic number.

It is an amenable number.

3999999900001 is a deficient number, since it is larger than the sum of its proper divisors (613935998879).

3999999900001 is a wasteful number, since it uses less digits than its factorization.

3999999900001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 645264.

The product of its (nonzero) digits is 14348907, while the sum is 67.

The spelling of 3999999900001 in words is "three trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred thousand, one".

Divisors: 1 7 109 763 8231 57617 636917 897179 4458419 6280253 69423953 485967671 5242463827 36697246789 571428557143 3999999900001