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1013312104 = 237192347881
BaseRepresentation
bin111100011001011…
…110101001101000
32121121201120212221
4330121132221220
54033401441404
6244314443424
734053003460
oct7431365150
92547646787
101013312104
1147aa96422
12243433574
13131c1b47c
1498814ba0
155de60954
hex3c65ea68

1013312104 has 128 divisors (see below), whose sum is σ = 2438553600. Its totient is φ = 384721920.

The previous prime is 1013311993. The next prime is 1013312129. The reversal of 1013312104 is 4012133101.

It is a super-2 number, since 2×10133121042 = 2053602840225813632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1149744 + ... + 1150624.

It is an arithmetic number, because the mean of its divisors is an integer number (19051200).

Almost surely, 21013312104 is an apocalyptic number.

1013312104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1013312104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1219276800).

1013312104 is an abundant number, since it is smaller than the sum of its proper divisors (1425241496).

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

1013312104 is a wasteful number, since it uses less digits than its factorization.

1013312104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983 (or 979 counting only the distinct ones).

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

The square root of 1013312104 is about 31832.5635788260. The cubic root of 1013312104 is about 1004.4178221067.

Adding to 1013312104 its reverse (4012133101), we get a palindrome (5025445205).

The spelling of 1013312104 in words is "one billion, thirteen million, three hundred twelve thousand, one hundred four".

Divisors: 1 2 4 7 8 14 19 23 28 38 46 47 56 76 92 94 133 152 161 184 188 266 322 329 376 437 532 644 658 874 881 893 1064 1081 1288 1316 1748 1762 1786 2162 2632 3059 3496 3524 3572 4324 6118 6167 6251 7048 7144 7567 8648 12236 12334 12502 15134 16739 20263 20539 24472 24668 25004 30268 33478 40526 41078 41407 49336 50008 60536 66956 81052 82156 82814 117173 133912 141841 143773 162104 164312 165628 234346 283682 287546 289849 331256 384997 468692 567364 575092 579698 769994 786733 937384 952361 1134728 1150184 1159396 1539988 1573466 1904722 2318792 2694979 3079976 3146932 3809444 5389958 5507131 6293864 6666527 7618888 10779916 11014262 13333054 18094859 21559832 22028524 26666108 36189718 44057048 53332216 72379436 126664013 144758872 253328026 506656052 1013312104