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305320430125 = 5312723998017
BaseRepresentation
bin1000111000101101000…
…01000000101000101101
31002012002022020212210201
410130112201000220231
520000244012231000
6352132352233501
731026060556414
oct4342641005055
91065068225721
10305320430125
11108538472197
124b20b23b891
1322a3a18c409
1410ac59b447b
157e1e80c96a
hex4716840a2d

305320430125 has 32 divisors (see below), whose sum is σ = 384248217600. Its totient is φ = 242201836800.

The previous prime is 305320430089. The next prime is 305320430131. The reversal of 305320430125 is 521034023503.

It is a de Polignac number, because none of the positive numbers 2k-305320430125 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 305320430093 and 305320430102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38080117 + ... + 38088133.

It is an arithmetic number, because the mean of its divisors is an integer number (12007756800).

Almost surely, 2305320430125 is an apocalyptic number.

It is an amenable number.

305320430125 is a deficient number, since it is larger than the sum of its proper divisors (78927787475).

305320430125 is a wasteful number, since it uses less digits than its factorization.

305320430125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10558 (or 10548 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 305320430125 its reverse (521034023503), we get a palindrome (826354453628).

The spelling of 305320430125 in words is "three hundred five billion, three hundred twenty million, four hundred thirty thousand, one hundred twenty-five".

Divisors: 1 5 25 125 127 635 2399 3175 8017 11995 15875 40085 59975 200425 299875 304673 1002125 1018159 1523365 5090795 7616825 19232783 25453975 38084125 96163915 127269875 480819575 2404097875 2442563441 12212817205 61064086025 305320430125