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231000010101 = 32711332448379
BaseRepresentation
bin1101011100100010101…
…1000110110101110101
3211002020210021100211200
43113020223012311311
512241042000310401
6254041523523113
722455252455130
oct3271053066565
9732223240750
10231000010101
1189a6a535663
1238929529499
1318a24925c13
14b27527b217
15601ec82686
hex35c8ac6d75

231000010101 has 24 divisors (see below), whose sum is σ = 384707993280. Its totient is φ = 130831860096.

The previous prime is 231000010069. The next prime is 231000010103. The reversal of 231000010101 is 101010000132.

It is not a de Polignac number, because 231000010101 - 25 = 231000010069 is a prime.

It is a super-2 number, since 2×2310000101012 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231000010103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16217071 + ... + 16231308.

It is an arithmetic number, because the mean of its divisors is an integer number (16029499720).

Almost surely, 2231000010101 is an apocalyptic number.

231000010101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

231000010101 is a deficient number, since it is larger than the sum of its proper divisors (153707983179).

231000010101 is a wasteful number, since it uses less digits than its factorization.

231000010101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32448505 (or 32448502 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 231000010101 its reverse (101010000132), we get a palindrome (332010010233).

The spelling of 231000010101 in words is "two hundred thirty-one billion, ten thousand, one hundred one".

Divisors: 1 3 7 9 21 63 113 339 791 1017 2373 7119 32448379 97345137 227138653 292035411 681415959 2044247877 3666666827 11000000481 25666667789 33000001443 77000003367 231000010101