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1012013223 = 31344957793
BaseRepresentation
bin111100010100100…
…001100010100111
32121112021121011020
4330110201202213
54033033410343
6244230542223
734035653604
oct7424414247
92545247136
101012013223
1147a289571
12242b07973
131318851c0
14985976ab
155dca5b83
hex3c5218a7

1012013223 has 16 divisors (see below), whose sum is σ = 1456408800. Its totient is φ = 621379584.

The previous prime is 1012013221. The next prime is 1012013227. The reversal of 1012013223 is 3223102101.

It is not a de Polignac number, because 1012013223 - 21 = 1012013221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012013221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11386 + ... + 46407.

It is an arithmetic number, because the mean of its divisors is an integer number (91025550).

Almost surely, 21012013223 is an apocalyptic number.

1012013223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1012013223 is a deficient number, since it is larger than the sum of its proper divisors (444395577).

1012013223 is a wasteful number, since it uses less digits than its factorization.

1012013223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58258.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1012013223 is about 31812.1552712167. The cubic root of 1012013223 is about 1003.9884785560.

Adding to 1012013223 its reverse (3223102101), we get a palindrome (4235115324).

The spelling of 1012013223 in words is "one billion, twelve million, thirteen thousand, two hundred twenty-three".

Divisors: 1 3 13 39 449 1347 5837 17511 57793 173379 751309 2253927 25949057 77847171 337337741 1012013223