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30542040760 = 23571125373233
BaseRepresentation
bin11100011100011100…
…101000111010111000
32220211112020102111211
4130130130220322320
51000022230301020
622010353532504
72130601030420
oct343434507270
986745212454
1030542040760
1111a53205300
125b04574134
132b5977988a
14169a425480
15bdb4e885a
hex71c728eb8

30542040760 has 384 divisors, whose sum is σ = 89541728640. Its totient is φ = 9172500480.

The previous prime is 30542040679. The next prime is 30542040787. The reversal of 30542040760 is 6704024503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 131081604 + ... + 131081836.

It is an arithmetic number, because the mean of its divisors is an integer number (233181585).

Almost surely, 230542040760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30542040760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44770864320).

30542040760 is an abundant number, since it is smaller than the sum of its proper divisors (58999687880).

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

30542040760 is a wasteful number, since it uses less digits than its factorization.

30542040760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The spelling of 30542040760 in words is "thirty billion, five hundred forty-two million, forty thousand, seven hundred sixty".