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101010311001 = 3260118674489
BaseRepresentation
bin101111000010010101…
…1110000011101011001
3100122201120201110101200
41132010223300131121
53123332114423001
6114223053304413
710204062322425
oct1360453603531
9318646643350
10101010311001
1139924761776
12176b0195109
1396a9c19bc2
144c632d3b85
152962ca6086
hex1784af0759

101010311001 has 12 divisors (see below), whose sum is σ = 146146558740. Its totient is φ = 67228156800.

The previous prime is 101010310987. The next prime is 101010311011. The reversal of 101010311001 is 100113010101.

It can be written as a sum of positive squares in 2 ways, for example, as 65270030400 + 35740280601 = 255480^2 + 189051^2 .

It is not a de Polignac number, because 101010311001 - 222 = 101006116697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (101010311011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9331836 + ... + 9342653.

It is an arithmetic number, because the mean of its divisors is an integer number (12178879895).

Almost surely, 2101010311001 is an apocalyptic number.

It is an amenable number.

101010311001 is a deficient number, since it is larger than the sum of its proper divisors (45136247739).

101010311001 is a wasteful number, since it uses less digits than its factorization.

101010311001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18675096 (or 18675093 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 9.

Adding to 101010311001 its reverse (100113010101), we get a palindrome (201123321102).

The spelling of 101010311001 in words is "one hundred one billion, ten million, three hundred eleven thousand, one".

Divisors: 1 3 9 601 1803 5409 18674489 56023467 168070401 11223367889 33670103667 101010311001