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1204231000013 = 29281147776537
BaseRepresentation
bin10001100001100001110…
…000101100111111001101
311021010022221002011212122
4101201201300230333031
5124212231114000023
62321114401342325
7153000652416026
oct21414160547715
94233287064778
101204231000013
11424791007018
1217547a6379a5
1389735028902
14423dc40dc4d
15214d13902c8
hex11861c2cfcd

1204231000013 has 8 divisors (see below), whose sum is σ = 1250189511480. Its totient is φ = 1158568042240.

The previous prime is 1204231000003. The next prime is 1204231000043. The reversal of 1204231000013 is 3100001324021.

It can be written as a sum of positive squares in 4 ways, for example, as 29701764964 + 1174529235049 = 172342^2 + 1083757^2 .

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 1204231000013 - 24 = 1204230999997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1204230999955 and 1204231000000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204231000003) 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, 73880120 + ... + 73896417.

It is an arithmetic number, because the mean of its divisors is an integer number (156273688935).

Almost surely, 21204231000013 is an apocalyptic number.

It is an amenable number.

1204231000013 is a deficient number, since it is larger than the sum of its proper divisors (45958511467).

1204231000013 is a wasteful number, since it uses less digits than its factorization.

1204231000013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147776847.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1204231000013 its reverse (3100001324021), we get a palindrome (4304232324034).

The spelling of 1204231000013 in words is "one trillion, two hundred four billion, two hundred thirty-one million, thirteen", and thus it is an aban number.

Divisors: 1 29 281 8149 147776537 4285519573 41525206897 1204231000013