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30735513120 = 253513172997103
BaseRepresentation
bin11100100111111110…
…101011011000100000
32221100000021211200210
4130213332223120200
51000421242404440
622041504414120
72135440356654
oct344776533040
987300254623
1030735513120
1112042439a14
125b59317340
132b8a889970
1416b7dc8a64
15bed4b3a80
hex727fab620

30735513120 has 768 divisors, whose sum is σ = 116501898240. Its totient is φ = 6738149376.

The previous prime is 30735513071. The next prime is 30735513143. The reversal of 30735513120 is 2131553703.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 298402989 + ... + 298403091.

It is an arithmetic number, because the mean of its divisors is an integer number (151695180).

Almost surely, 230735513120 is an apocalyptic number.

30735513120 is a gapful number since it is divisible by the number (30) 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 30735513120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58250949120).

30735513120 is an abundant number, since it is smaller than the sum of its proper divisors (85766385120).

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

30735513120 is a wasteful number, since it uses less digits than its factorization.

30735513120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 30.

The spelling of 30735513120 in words is "thirty billion, seven hundred thirty-five million, five hundred thirteen thousand, one hundred twenty".