Base | Representation |
---|---|
bin | 1011000011110110111… |
… | …0100111010011000001 |
3 | 200011110102020000110200 |
4 | 2300331232213103001 |
5 | 11103122113101120 |
6 | 223142531315413 |
7 | 16504504654416 |
oct | 2607556472301 |
9 | 604412200420 |
10 | 190014190785 |
11 | 73648069a11 |
12 | 309ab44bb69 |
13 | 14bc255cc23 |
14 | 92a7bb410d |
15 | 4e2196ae90 |
hex | 2c3dba74c1 |
190014190785 has 24 divisors (see below), whose sum is σ = 329368124904. Its totient is φ = 101337765120.
The previous prime is 190014190771. The next prime is 190014190787. The reversal of 190014190785 is 587091410091.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 49652317584 + 140361873201 = 222828^2 + 374649^2 .
It is not a de Polignac number, because 190014190785 - 28 = 190014190529 is a prime.
It is a super-2 number, since 2×1900141907852 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 190014190785.
It is not an unprimeable number, because it can be changed into a prime (190014190787) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2593719 + ... + 2665971.
It is an arithmetic number, because the mean of its divisors is an integer number (13723671871).
Almost surely, 2190014190785 is an apocalyptic number.
190014190785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
190014190785 is a deficient number, since it is larger than the sum of its proper divisors (139353934119).
190014190785 is a wasteful number, since it uses less digits than its factorization.
190014190785 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 130705 (or 130702 counting only the distinct ones).
The product of its (nonzero) digits is 90720, while the sum is 45.
The spelling of 190014190785 in words is "one hundred ninety billion, fourteen million, one hundred ninety thousand, seven hundred eighty-five".
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