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1013212312 = 23789203293
BaseRepresentation
bin111100011001000…
…110010010011000
32121121112111222221
4330121012102120
54033340243222
6244312353424
734052106520
oct7431062230
92547474887
101013212312
1147aa28452
122433a5874
13131bb4c18
14987ca680
155de410c7
hex3c646498

1013212312 has 32 divisors (see below), whose sum is σ = 2195575200. Its totient is φ = 429352704.

The previous prime is 1013212309. The next prime is 1013212313. The reversal of 1013212312 is 2132123101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013212313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96663 + ... + 106630.

It is an arithmetic number, because the mean of its divisors is an integer number (68611725).

Almost surely, 21013212312 is an apocalyptic number.

It is an amenable number.

1013212312 is an abundant number, since it is smaller than the sum of its proper divisors (1182362888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1013212312 is a wasteful number, since it uses less digits than its factorization.

1013212312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203395 (or 203391 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1013212312 is about 31830.9960887183. The cubic root of 1013212312 is about 1004.3848489969.

Adding to 1013212312 its reverse (2132123101), we get a palindrome (3145335413).

The spelling of 1013212312 in words is "one billion, thirteen million, two hundred twelve thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 89 178 356 623 712 1246 2492 4984 203293 406586 813172 1423051 1626344 2846102 5692204 11384408 18093077 36186154 72372308 126651539 144744616 253303078 506606156 1013212312