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201142241431 = 3117873630923
BaseRepresentation
bin1011101101010100000…
…0110000100010010111
3201020011221121120011121
42323111000300202113
511243414403211211
6232223052144411
720350330561645
oct2732500604227
9636157546147
10201142241431
117833860808a
1232b96168107
1315c76b6c991
149a41a98195
1553738a1271
hex2ed5030897

201142241431 has 8 divisors (see below), whose sum is σ = 207746947584. Its totient is φ = 194544800760.

The previous prime is 201142241429. The next prime is 201142241437. The reversal of 201142241431 is 134142241102.

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 201142241431 - 21 = 201142241429 is a prime.

It is a super-2 number, since 2×2011422414312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201142241396 and 201142241405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201142241437) 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, 1760065 + ... + 1870858.

It is an arithmetic number, because the mean of its divisors is an integer number (25968368448).

Almost surely, 2201142241431 is an apocalyptic number.

201142241431 is a deficient number, since it is larger than the sum of its proper divisors (6604706153).

201142241431 is a wasteful number, since it uses less digits than its factorization.

201142241431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3632741.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 201142241431 its reverse (134142241102), we get a palindrome (335284482533).

The spelling of 201142241431 in words is "two hundred one billion, one hundred forty-two million, two hundred forty-one thousand, four hundred thirty-one".

Divisors: 1 31 1787 55397 3630923 112558613 6488459401 201142241431