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1223138301 = 371122571873
BaseRepresentation
bin100100011100111…
…1001101111111101
310011020112212022120
41020321321233331
510001110411201
6321212033153
742211334610
oct11071715775
93136485276
101223138301
1157847aa00
122a17627b9
13166536198
14b8634177
15725ab536
hex48e79bfd

1223138301 has 48 divisors (see below), whose sum is σ = 2057741952. Its totient is φ = 632586240.

The previous prime is 1223138299. The next prime is 1223138309. The reversal of 1223138301 is 1038313221.

It is not a de Polignac number, because 1223138301 - 21 = 1223138299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223138309) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 652101 + ... + 653973.

It is an arithmetic number, because the mean of its divisors is an integer number (42869624).

Almost surely, 21223138301 is an apocalyptic number.

1223138301 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1223138301 is a deficient number, since it is larger than the sum of its proper divisors (834603651).

1223138301 is a wasteful number, since it uses less digits than its factorization.

1223138301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2162 (or 2151 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 1223138301 is about 34973.3941875821. The cubic root of 1223138301 is about 1069.4451663910.

The spelling of 1223138301 in words is "one billion, two hundred twenty-three million, one hundred thirty-eight thousand, three hundred one".

Divisors: 1 3 7 11 21 33 77 121 231 257 363 771 847 1799 1873 2541 2827 5397 5619 8481 13111 19789 20603 31097 39333 59367 61809 93291 144221 217679 226633 432663 481361 653037 679899 1444083 1586431 3369527 4759293 5294971 10108581 15884913 37064797 58244681 111194391 174734043 407712767 1223138301