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1231013032 = 239712712491
BaseRepresentation
bin100100101011111…
…1100010010101000
310011210100221102021
41021113330102220
510010114404112
6322052514224
742335303164
oct11127742250
93153327367
101231013032
11581969347
122a431b974
131680625a2
14b96c3ca4
1573114907
hex495fc4a8

1231013032 has 32 divisors (see below), whose sum is σ = 2350494720. Its totient is φ = 604316160.

The previous prime is 1231013011. The next prime is 1231013093. The reversal of 1231013032 is 2303101321.

It is a junction number, because it is equal to n+sod(n) for n = 1231012997 and 1231013015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92307 + ... + 104797.

It is an arithmetic number, because the mean of its divisors is an integer number (73452960).

Almost surely, 21231013032 is an apocalyptic number.

It is an amenable number.

1231013032 is a deficient number, since it is larger than the sum of its proper divisors (1119481688).

1231013032 is a wasteful number, since it uses less digits than its factorization.

1231013032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12721 (or 12717 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1231013032 is about 35085.7953023727. The cubic root of 1231013032 is about 1071.7353364788.

Adding to 1231013032 its reverse (2303101321), we get a palindrome (3534114353).

The spelling of 1231013032 in words is "one billion, two hundred thirty-one million, thirteen thousand, thirty-two".

Divisors: 1 2 4 8 97 127 194 254 388 508 776 1016 12319 12491 24638 24982 49276 49964 98552 99928 1211627 1586357 2423254 3172714 4846508 6345428 9693016 12690856 153876629 307753258 615506516 1231013032