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190111001010102 = 23210561722278339
BaseRepresentation
bin101011001110011110101010…
…101011101101111110110110
3220221010102201112101100211100
4223032132222223231332312
5144404234312224310402
61512155442125150530
755021031554646364
oct5316365253557666
9827112645340740
10190111001010102
1155636693983117
12193a49516bb446
13821050cb32433
1434d35c8a0a634
1516ea35407471c
hexace7aaaedfb6

190111001010102 has 12 divisors (see below), whose sum is σ = 411907168855260. Its totient is φ = 63370333670028.

The previous prime is 190111001010097. The next prime is 190111001010167. The reversal of 190111001010102 is 201010100111091.

It is a super-2 number, since 2×1901110010101022 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 10561722278339 = 190111001010102 / (1 + 9 + 0 + 1 + 1 + 1 + 0 + 0 + 1 + 0 + 1 + 0 + 1 + 0 + 2).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5280861139152 + ... + 5280861139187.

It is an arithmetic number, because the mean of its divisors is an integer number (34325597404605).

Almost surely, 2190111001010102 is an apocalyptic number.

190111001010102 is an abundant number, since it is smaller than the sum of its proper divisors (221796167845158).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190111001010102 is a wasteful number, since it uses less digits than its factorization.

190111001010102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10561722278347 (or 10561722278344 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 18.

Adding to 190111001010102 its reverse (201010100111091), we get a palindrome (391121101121193).

The spelling of 190111001010102 in words is "one hundred ninety trillion, one hundred eleven billion, one million, ten thousand, one hundred two".

Divisors: 1 2 3 6 9 18 10561722278339 21123444556678 31685166835017 63370333670034 95055500505051 190111001010102