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30523141525025 = 521220925661001
BaseRepresentation
bin1101111000010101110010…
…00000100000111000100001
311000001222120012202202011002
412330022321000200320201
513000042343212300100
6144530045421401345
76300136621106552
oct674127100407041
9130058505682132
1030523141525025
1197a8878721846
12350b70a409255
131405420a6b6a6
14777483bbc329
1537de9c3752d5
hex1bc2b9020e21

30523141525025 has 6 divisors (see below), whose sum is σ = 37848695491062. Its totient is φ = 24418513220000.

The previous prime is 30523141525007. The next prime is 30523141525057. The reversal of 30523141525025 is 52052514132503.

It can be written as a sum of positive squares in 3 ways, for example, as 9247145791744 + 21275995733281 = 3040912^2 + 4612591^2 .

It is a de Polignac number, because none of the positive numbers 2k-30523141525025 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30523141525025.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 610462830476 + ... + 610462830525.

It is an arithmetic number, because the mean of its divisors is an integer number (6308115915177).

Almost surely, 230523141525025 is an apocalyptic number.

It is an amenable number.

30523141525025 is a deficient number, since it is larger than the sum of its proper divisors (7325553966037).

30523141525025 is a wasteful number, since it uses less digits than its factorization.

30523141525025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220925661011 (or 1220925661006 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 30523141525025 its reverse (52052514132503), we get a palindrome (82575655657528).

The spelling of 30523141525025 in words is "thirty trillion, five hundred twenty-three billion, one hundred forty-one million, five hundred twenty-five thousand, twenty-five".

Divisors: 1 5 25 1220925661001 6104628305005 30523141525025