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30452594140 = 2251522629707
BaseRepresentation
bin11100010111000111…
…011011010111011100
32220121021221001211001
4130113013123113130
5444331331003030
621553440440044
72125433531203
oct342707332734
986537831731
1030452594140
1111a07771781
125a9a619024
132b4408c797
14168c5c023a
15bd372acca
hex7171db5dc

30452594140 has 12 divisors (see below), whose sum is σ = 63950447736. Its totient is φ = 12181037648.

The previous prime is 30452594083. The next prime is 30452594149. The reversal of 30452594140 is 4149525403.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 30452594140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30452594149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 761314834 + ... + 761314873.

It is an arithmetic number, because the mean of its divisors is an integer number (5329203978).

Almost surely, 230452594140 is an apocalyptic number.

It is an amenable number.

30452594140 is an abundant number, since it is smaller than the sum of its proper divisors (33497853596).

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

30452594140 is a wasteful number, since it uses less digits than its factorization.

30452594140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522629716 (or 1522629714 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 30452594140 in words is "thirty billion, four hundred fifty-two million, five hundred ninety-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1522629707 3045259414 6090518828 7613148535 15226297070 30452594140