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202144130431 = 3125432564207
BaseRepresentation
bin1011110001000010111…
…0101010010101111111
3201022202202211210111121
42330100232222111333
511302442344133211
6232510322131411
720414214521065
oct2742056522577
9638682753447
10202144130431
1178802101121
12332157b0b67
13160a65bb8c9
149ad8b78035
1553d1807271
hex2f10baa57f

202144130431 has 8 divisors (see below), whose sum is σ = 208747044864. Its totient is φ = 195546349560.

The previous prime is 202144130399. The next prime is 202144130437. The reversal of 202144130431 is 134031441202.

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

It is not a de Polignac number, because 202144130431 - 25 = 202144130399 is a prime.

It is a super-2 number, since 2×2021441304312 (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 = 202144130396 and 202144130405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202144130437) 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, 1203271 + ... + 1360936.

It is an arithmetic number, because the mean of its divisors is an integer number (26093380608).

Almost surely, 2202144130431 is an apocalyptic number.

202144130431 is a deficient number, since it is larger than the sum of its proper divisors (6602914433).

202144130431 is a wasteful number, since it uses less digits than its factorization.

202144130431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566781.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 202144130431 its reverse (134031441202), we get a palindrome (336175571633).

The spelling of 202144130431 in words is "two hundred two billion, one hundred forty-four million, one hundred thirty thousand, four hundred thirty-one".

Divisors: 1 31 2543 78833 2564207 79490417 6520778401 202144130431