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30542004720 = 2433553431619
BaseRepresentation
bin11100011100011100…
…100000000111110000
32220211112011121002000
4130130130200013300
51000022223122340
622010353054000
72130600520353
oct343434400760
986745147060
1030542004720
1111a53190217
125b04557300
132b59766356
14169a41629a
15bdb4dcd30
hex71c7201f0

30542004720 has 320 divisors, whose sum is σ = 107607398400. Its totient is φ = 7959444480.

The previous prime is 30542004709. The next prime is 30542004737. The reversal of 30542004720 is 2740024503.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49340571 + ... + 49341189.

It is an arithmetic number, because the mean of its divisors is an integer number (336273120).

Almost surely, 230542004720 is an apocalyptic number.

30542004720 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 30542004720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53803699200).

30542004720 is an abundant number, since it is smaller than the sum of its proper divisors (77065393680).

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

30542004720 is a wasteful number, since it uses less digits than its factorization.

30542004720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125 (or 1113 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The spelling of 30542004720 in words is "thirty billion, five hundred forty-two million, four thousand, seven hundred twenty".