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101002102001 = 10942112971697
BaseRepresentation
bin101111000010000110…
…0011100010011110001
3100122201000021101202122
41132010030130103301
53123323014231001
6114222201324025
710203632462453
oct1360414342361
9318630241678
10101002102001
1139920065179
12176a9496615
1396a83045c8
144c621982d3
1529621d3b1b
hex178431c4f1

101002102001 has 16 divisors (see below), whose sum is σ = 102309865680. Its totient is φ = 99702005760.

The previous prime is 101002101931. The next prime is 101002102009. The reversal of 101002102001 is 100201200101.

It can be written as a sum of positive squares in 8 ways, for example, as 15562812001 + 85439290000 = 124751^2 + 292300^2 .

It is a cyclic number.

It is not a de Polignac number, because 101002102001 - 230 = 99928360177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101002102001.

It is not an unprimeable number, because it can be changed into a prime (101002102009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59517185 + ... + 59518881.

It is an arithmetic number, because the mean of its divisors is an integer number (6394366605).

Almost surely, 2101002102001 is an apocalyptic number.

It is an amenable number.

101002102001 is a deficient number, since it is larger than the sum of its proper divisors (1307763679).

101002102001 is a wasteful number, since it uses less digits than its factorization.

101002102001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3524.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 101002102001 its reverse (100201200101), we get a palindrome (201203302102).

The spelling of 101002102001 in words is "one hundred one billion, two million, one hundred two thousand, one".

Divisors: 1 109 421 1297 1697 45889 141373 184973 546037 714437 2201009 59518033 77873633 239909981 926624789 101002102001