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30250152725 = 5213661140813
BaseRepresentation
bin11100001011000011…
…001011001100010101
32220002011222222101212
4130023003023030111
5443423014341400
621521405431205
72120425025042
oct341303131425
986064888355
1030250152725
1111913471521
125a4286b505
132b1115c170
14166d7641c9
15bc0a8d335
hex70b0cb315

30250152725 has 24 divisors (see below), whose sum is σ = 40456988712. Its totient is φ = 22304620800.

The previous prime is 30250152701. The next prime is 30250152761. The reversal of 30250152725 is 52725105203.

It can be written as a sum of positive squares in 12 ways, for example, as 10482073924 + 19768078801 = 102382^2 + 140599^2 .

It is a de Polignac number, because none of the positive numbers 2k-30250152725 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30250152691 and 30250152700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144419 + ... + 285231.

It is an arithmetic number, because the mean of its divisors is an integer number (1685707863).

Almost surely, 230250152725 is an apocalyptic number.

It is an amenable number.

30250152725 is a deficient number, since it is larger than the sum of its proper divisors (10206835987).

30250152725 is a wasteful number, since it uses less digits than its factorization.

30250152725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141497 (or 141492 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 32.

Adding to 30250152725 its reverse (52725105203), we get a palindrome (82975257928).

The spelling of 30250152725 in words is "thirty billion, two hundred fifty million, one hundred fifty-two thousand, seven hundred twenty-five".

Divisors: 1 5 13 25 65 325 661 3305 8593 16525 42965 140813 214825 704065 1830569 3520325 9152845 45764225 93077393 465386965 1210006109 2326934825 6050030545 30250152725