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30131321310200 = 23521190911506551
BaseRepresentation
bin1101101100111011111101…
…01101000000101111111000
310221200112012120220111221202
412312131332231000233320
512422132421223411300
6144030045442353332
76226626142200665
oct666357655005770
9127615176814852
1030131321310200
1196676923a3090
12346779a65b848
1313a74a9ca0626
14762514122a6c
15373bb8b3bad5
hex1b677eb40bf8

30131321310200 has 96 divisors (see below), whose sum is σ = 76432444974720. Its totient is φ = 10955631600000.

The previous prime is 30131321310199. The next prime is 30131321310217. The reversal of 30131321310200 is 201312313103.

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

It is a congruent number.

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, 19246925 + ... + 20753475.

It is an arithmetic number, because the mean of its divisors is an integer number (796171301820).

Almost surely, 230131321310200 is an apocalyptic number.

It is an amenable number.

30131321310200 is an abundant number, since it is smaller than the sum of its proper divisors (46301123664520).

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

30131321310200 is a wasteful number, since it uses less digits than its factorization.

30131321310200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515669 (or 1515660 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30131321310200 its reverse (201312313103), we get a palindrome (30332633623303).

The spelling of 30131321310200 in words is "thirty trillion, one hundred thirty-one billion, three hundred twenty-one million, three hundred ten thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 2200 9091 18182 36364 45455 72728 90910 100001 181820 200002 227275 363640 400004 454550 500005 800008 909100 1000010 1506551 1818200 2000020 2500025 3013102 4000040 5000050 6026204 7532755 10000100 12052408 15065510 16572061 20000200 30131020 33144122 37663775 60262040 66288244 75327550 82860305 132576488 150655100 165720610 301310200 331441220 414301525 662882440 828603050 1657206100 3314412200 13696055141 27392110282 54784220564 68480275705 109568441128 136960551410 150656606551 273921102820 301313213102 342401378525 547842205640 602626426204 684802757050 753283032755 1205252852408 1369605514100 1506566065510 2739211028200 3013132131020 3766415163775 6026264262040 7532830327550 15065660655100 30131321310200