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202000012431 = 3715767790499
BaseRepresentation
bin1011110000100000100…
…0111001010010001111
3201022101201122211202220
42330020020321102033
511302144000344211
6232444133150423
720410514530020
oct2741010712217
9638351584686
10202000012431
1178738817138
123319548b413
131608279c099
149ac3980c47
1553c3d3a806
hex2f0823948f

202000012431 has 32 divisors (see below), whose sum is σ = 310231104000. Its totient is φ = 114522685056.

The previous prime is 202000012421. The next prime is 202000012463. The reversal of 202000012431 is 134210000202.

It is not a de Polignac number, because 202000012431 - 26 = 202000012367 is a prime.

It is a super-2 number, since 2×2020000124312 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 202000012431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202000012421) 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 31 ways as a sum of consecutive naturals, for example, 2186820 + ... + 2277318.

It is an arithmetic number, because the mean of its divisors is an integer number (9694722000).

Almost surely, 2202000012431 is an apocalyptic number.

202000012431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

202000012431 is a deficient number, since it is larger than the sum of its proper divisors (108231091569).

202000012431 is a wasteful number, since it uses less digits than its factorization.

202000012431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91343.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 202000012431 its reverse (134210000202), we get a palindrome (336210012633).

The spelling of 202000012431 in words is "two hundred two billion, twelve thousand, four hundred thirty-one".

Divisors: 1 3 7 21 157 471 677 1099 2031 3297 4739 14217 90499 106289 271497 318867 633493 744023 1900479 2232069 14208343 42625029 61267823 99458401 183803469 298375203 428874761 1286624283 9619048211 28857144633 67333337477 202000012431