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13031223021200 = 245259737563979
BaseRepresentation
bin1011110110100001000101…
…1010110100111010010000
31201010202212100010100100002
42331220101122310322100
53202000421043134300
643414243342145132
72513321566036616
oct275502132647220
951122770110302
1013031223021200
11417456874374a
1215656562821a8
13736aba5452a7
14330a00a736b6
15178e8a8475d5
hexbda116b4e90

13031223021200 has 120 divisors (see below), whose sum is σ = 32274292423200. Its totient is φ = 5053947540480.

The previous prime is 13031223021097. The next prime is 13031223021227. The reversal of 13031223021200 is 212032213031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2059190 + ... + 5504789.

It is an arithmetic number, because the mean of its divisors is an integer number (268952436860).

Almost surely, 213031223021200 is an apocalyptic number.

13031223021200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13031223021200 is an abundant number, since it is smaller than the sum of its proper divisors (19243069402000).

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

13031223021200 is a wasteful number, since it uses less digits than its factorization.

13031223021200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7564129 (or 7564118 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13031223021200 its reverse (212032213031), we get a palindrome (13243255234231).

The spelling of 13031223021200 in words is "thirteen trillion, thirty-one billion, two hundred twenty-three million, twenty-one thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 59 73 80 100 118 146 200 236 292 295 365 400 472 584 590 730 944 1168 1180 1460 1475 1825 2360 2920 2950 3650 4307 4720 5840 5900 7300 8614 11800 14600 17228 21535 23600 29200 34456 43070 68912 86140 107675 172280 215350 344560 430700 861400 1722800 7563979 15127958 30255916 37819895 60511832 75639790 121023664 151279580 189099475 302559160 378198950 446274761 552170467 605118320 756397900 892549522 1104340934 1512795800 1785099044 2208681868 2231373805 2760852335 3025591600 3570198088 4417363736 4462747610 5521704670 7140396176 8834727472 8925495220 11043409340 11156869025 13804261675 17850990440 22086818680 22313738050 27608523350 32578057553 35701980880 44173637360 44627476100 55217046700 65156115106 89254952200 110434093400 130312230212 162890287765 178509904400 220868186800 260624460424 325780575530 521248920848 651561151060 814451438825 1303122302120 1628902877650 2606244604240 3257805755300 6515611510600 13031223021200