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102001310001 = 3211333478889
BaseRepresentation
bin101111011111111000…
…0000111100100110001
3100202021122110102110100
41132333300013210301
53132344313410001
6114505254023013
710240454554353
oct1367760074461
9322248412410
10102001310001
113a293097a08
1217928047a69
139807325146
144d18b7b0d3
1529becaa586
hex17bfc07931

102001310001 has 6 divisors (see below), whose sum is σ = 147335225570. Its totient is φ = 68000873328.

The previous prime is 102001309919. The next prime is 102001310011. The reversal of 102001310001 is 100013100201.

It can be written as a sum of positive squares in only one way, i.e., 98856792225 + 3144517776 = 314415^2 + 56076^2 .

It is not a de Polignac number, because 102001310001 - 210 = 102001308977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11333478889 = 102001310001 / (1 + 0 + 2 + 0 + 0 + 1 + 3 + 1 + 0 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102001310011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5666739436 + ... + 5666739453.

Almost surely, 2102001310001 is an apocalyptic number.

It is an amenable number.

102001310001 is a deficient number, since it is larger than the sum of its proper divisors (45333915569).

102001310001 is a wasteful number, since it uses less digits than its factorization.

102001310001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11333478895 (or 11333478892 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 102001310001 its reverse (100013100201), we get a palindrome (202014410202).

It can be divided in two parts, 10200 and 1310001, that added together give a square (1320201 = 11492).

The spelling of 102001310001 in words is "one hundred two billion, one million, three hundred ten thousand, one".

Divisors: 1 3 9 11333478889 34000436667 102001310001