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100111001011 = 7611549151357
BaseRepresentation
bin101110100111100010…
…1001010010110110011
3100120101220111210000021
41131033011022112303
53120011404013021
6113553530104311
710142562316420
oct1351705122663
9316356453007
10100111001011
113950306087a
121749ab7b097
139595805608
144bb9ab6d47
15290dd63c41
hex174f14a5b3

100111001011 has 16 divisors (see below), whose sum is σ = 116364030400. Its totient is φ = 84347671680.

The previous prime is 100111001009. The next prime is 100111001017. The reversal of 100111001011 is 110100111001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100111001011 - 21 = 100111001009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100111000985 and 100111001003.

It is not an unprimeable number, because it can be changed into a prime (100111001017) 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, 585745 + ... + 737101.

It is an arithmetic number, because the mean of its divisors is an integer number (7272751900).

Almost surely, 2100111001011 is an apocalyptic number.

100111001011 is a deficient number, since it is larger than the sum of its proper divisors (16253029389).

100111001011 is a wasteful number, since it uses less digits than its factorization.

100111001011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152974.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 100111001011 its reverse (110100111001), we get a palindrome (210211112012).

The spelling of 100111001011 in words is "one hundred billion, one hundred eleven million, one thousand, eleven".

Divisors: 1 7 61 427 1549 10843 94489 151357 661423 1059499 9232777 64629439 234451993 1641163951 14301571573 100111001011