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143311041431 = 437434485619
BaseRepresentation
bin1000010101111000000…
…0001111001110010111
3111200220121000012201022
42011132000033032113
54322000111311211
6145500340551355
713232244516215
oct2053600171627
9450817005638
10143311041431
115586138a618
12239366b255b
131068b83bbcc
146d1727dcb5
153adb755bdb
hex215e00f397

143311041431 has 8 divisors (see below), whose sum is σ = 146841256320. Its totient is φ = 139789799352.

The previous prime is 143311041407. The next prime is 143311041443. The reversal of 143311041431 is 134140113341.

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 143311041431 - 234 = 126131172247 is a prime.

It is a super-2 number, since 2×1433110414312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143311041431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143311041031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2210861 + ... + 2274758.

It is an arithmetic number, because the mean of its divisors is an integer number (18355157040).

Almost surely, 2143311041431 is an apocalyptic number.

143311041431 is a deficient number, since it is larger than the sum of its proper divisors (3530214889).

143311041431 is an equidigital number, since it uses as much as digits as its factorization.

143311041431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486405.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 143311041431 its reverse (134140113341), we get a palindrome (277451154772).

The spelling of 143311041431 in words is "one hundred forty-three billion, three hundred eleven million, forty-one thousand, four hundred thirty-one".

Divisors: 1 43 743 31949 4485619 192881617 3332814917 143311041431