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23389129312 = 2517791094993
BaseRepresentation
bin10101110010000110…
…011100101001100000
32020101000202212122121
4111302012130221200
5340400104114222
614424514114024
71455414214243
oct256206345140
966330685577
1023389129312
119a1261003a
124648b7b914
1322898957b3
1411bc46325a
1591d5775c7
hex57219ca60

23389129312 has 96 divisors (see below), whose sum is σ = 49836124800. Its totient is φ = 10765467648.

The previous prime is 23389129307. The next prime is 23389129327. The reversal of 23389129312 is 21392198332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4681888 + ... + 4686880.

It is an arithmetic number, because the mean of its divisors is an integer number (519126300).

Almost surely, 223389129312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23389129312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24918062400).

23389129312 is an abundant number, since it is smaller than the sum of its proper divisors (26446995488).

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

23389129312 is a wasteful number, since it uses less digits than its factorization.

23389129312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5208 (or 5200 counting only the distinct ones).

The product of its digits is 139968, while the sum is 43.

The spelling of 23389129312 in words is "twenty-three billion, three hundred eighty-nine million, one hundred twenty-nine thousand, three hundred twelve".

Divisors: 1 2 4 8 16 17 32 34 68 79 109 136 158 218 272 316 436 544 632 872 1264 1343 1744 1853 2528 2686 3488 3706 4993 5372 7412 8611 9986 10744 14824 17222 19972 21488 29648 34444 39944 42976 59296 68888 79888 84881 137776 146387 159776 169762 275552 292774 339524 394447 544237 585548 679048 788894 1088474 1171096 1358096 1577788 2176948 2342192 2716192 3155576 4353896 4684384 6311152 6705599 8707792 9252029 12622304 13411198 17415584 18504058 26822396 37008116 42994723 53644792 74016232 85989446 107289584 148032464 171978892 214579168 296064928 343957784 687915568 730910291 1375831136 1461820582 2923641164 5847282328 11694564656 23389129312