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30131329900 = 2252726149251
BaseRepresentation
bin11100000011111101…
…111001101101101100
32212202220102011010111
4130003331321231230
5443202110024100
621501522545404
72114453035600
oct340375715554
985686364114
1030131329900
1111862394141
125a0ab08264
132ac2657cb9
14165ba73500
15bb541b6ba
hex703f79b6c

30131329900 has 54 divisors (see below), whose sum is σ = 76060097988. Its totient is φ = 10330740000.

The previous prime is 30131329867. The next prime is 30131329903. The reversal of 30131329900 is 992313103.

It is not an unprimeable number, because it can be changed into a prime (30131329903) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3069726 + ... + 3079525.

Almost surely, 230131329900 is an apocalyptic number.

It is an amenable number.

30131329900 is an abundant number, since it is smaller than the sum of its proper divisors (45928768088).

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

30131329900 is a wasteful number, since it uses less digits than its factorization.

30131329900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6149279 (or 6149265 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 31.

The spelling of 30131329900 in words is "thirty billion, one hundred thirty-one million, three hundred twenty-nine thousand, nine hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 49 50 70 98 100 140 175 196 245 350 490 700 980 1225 2450 4900 6149251 12298502 24597004 30746255 43044757 61492510 86089514 122985020 153731275 172179028 215223785 301313299 307462550 430447570 602626598 614925100 860895140 1076118925 1205253196 1506566495 2152237850 3013132990 4304475700 6026265980 7532832475 15065664950 30131329900