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190443031441 = 13104761139837
BaseRepresentation
bin1011000101011101001…
…0100000101110010001
3200012120022011101020221
42301113102200232101
511110011404001231
6223253251033041
716521233025625
oct2612722405621
9605508141227
10190443031441
1173848143283
1230aaab9b781
1314c6035b8b0
149308b25185
154e49429d11
hex2c574a0b91

190443031441 has 8 divisors (see below), whose sum is σ = 205095919784. Its totient is φ = 175790632320.

The previous prime is 190443031439. The next prime is 190443031463. The reversal of 190443031441 is 144130344091.

It can be written as a sum of positive squares in 4 ways, for example, as 1569348225 + 188873683216 = 39615^2 + 434596^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 190443031441 - 21 = 190443031439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190443031397 and 190443031406.

It is not an unprimeable number, because it can be changed into a prime (190443031421) 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 7 ways as a sum of consecutive naturals, for example, 1291975 + ... + 1431811.

It is an arithmetic number, because the mean of its divisors is an integer number (25636989973).

Almost surely, 2190443031441 is an apocalyptic number.

It is an amenable number.

190443031441 is a deficient number, since it is larger than the sum of its proper divisors (14652888343).

190443031441 is a wasteful number, since it uses less digits than its factorization.

190443031441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244611.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 190443031441 in words is "one hundred ninety billion, four hundred forty-three million, thirty-one thousand, four hundred forty-one".

Divisors: 1 13 104761 139837 1361893 1817881 14649463957 190443031441