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30067939440 = 243257111761523
BaseRepresentation
bin11100000000001100…
…000101100001110000
32212121111010120202200
4130000030011201300
5443034343030230
621451340143200
72113053161010
oct340014054160
985544116680
1030067939440
111182a627a30
1259b1837b00
132ab2491a56
141653491c40
15baea99160
hex700305870

30067939440 has 960 divisors, whose sum is σ = 135744740352. Its totient is φ = 5772902400.

The previous prime is 30067939439. The next prime is 30067939579. The reversal of 30067939440 is 4493976003.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 57491019 + ... + 57491541.

Almost surely, 230067939440 is an apocalyptic number.

30067939440 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 30067939440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67872370176).

30067939440 is an abundant number, since it is smaller than the sum of its proper divisors (105676800912).

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

30067939440 is a wasteful number, since it uses less digits than its factorization.

30067939440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 45.

The spelling of 30067939440 in words is "thirty billion, sixty-seven million, nine hundred thirty-nine thousand, four hundred forty".