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30225401440 = 2551314531443
BaseRepresentation
bin11100001001100100…
…110000011001100000
32220000110102111000121
4130021210300121200
5443400200321230
621515123130024
72120004446623
oct341144603140
986013374017
1030225401440
11119004a6513
125a36513914
132b08ca4230
14166a35ddba
15bbd7ee77a
hex709930660

30225401440 has 48 divisors (see below), whose sum is σ = 76900401648. Its totient is φ = 11160147456.

The previous prime is 30225401431. The next prime is 30225401441. The reversal of 30225401440 is 4410452203.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30225401441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7263642 + ... + 7267801.

It is an arithmetic number, because the mean of its divisors is an integer number (1602091701).

Almost surely, 230225401440 is an apocalyptic number.

It is an amenable number.

30225401440 is an abundant number, since it is smaller than the sum of its proper divisors (46675000208).

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

30225401440 is a wasteful number, since it uses less digits than its factorization.

30225401440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14531471 (or 14531463 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 30225401440 its reverse (4410452203), we get a palindrome (34635853643).

The spelling of 30225401440 in words is "thirty billion, two hundred twenty-five million, four hundred one thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 13 16 20 26 32 40 52 65 80 104 130 160 208 260 416 520 1040 2080 14531443 29062886 58125772 72657215 116251544 145314430 188908759 232503088 290628860 377817518 465006176 581257720 755635036 944543795 1162515440 1511270072 1889087590 2325030880 3022540144 3778175180 6045080288 7556350360 15112700720 30225401440