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203124213231 = 3107632785711
BaseRepresentation
bin1011110100101100100…
…1011000010111101111
3201102022002001011100120
42331023021120113233
511311444244310411
6233151452500023
720450415216252
oct2751311302757
9642262034316
10203124213231
1179165360905
1233449a7a613
1316201674264
149b8cdbd099
15543c8a2106
hex2f4b2585ef

203124213231 has 8 divisors (see below), whose sum is σ = 273363427584. Its totient is φ = 134150570520.

The previous prime is 203124213209. The next prime is 203124213241. The reversal of 203124213231 is 132312421302.

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

It is not a de Polignac number, because 203124213231 - 25 = 203124213199 is a prime.

It is a super-2 number, since 2×2031242132312 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203124213241) 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, 316392535 + ... + 316393176.

It is an arithmetic number, because the mean of its divisors is an integer number (34170428448).

Almost surely, 2203124213231 is an apocalyptic number.

203124213231 is a deficient number, since it is larger than the sum of its proper divisors (70239214353).

203124213231 is a wasteful number, since it uses less digits than its factorization.

203124213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632785821.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 203124213231 its reverse (132312421302), we get a palindrome (335436634533).

The spelling of 203124213231 in words is "two hundred three billion, one hundred twenty-four million, two hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 3 107 321 632785711 1898357133 67708071077 203124213231