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315025030405 = 5312591111219
BaseRepresentation
bin1001001010110001111…
…01000111110100000101
31010010010122011122200201
410211120331013310011
520130132401433110
6400415343410501
731521420401611
oct4453075076405
91103118148621
10315025030405
11111668464aa8
12510792b3a31
13239258cc947
1411366800341
1582db7b9b3a
hex4958f47d05

315025030405 has 24 divisors (see below), whose sum is σ = 397238925600. Its totient is φ = 239756395680.

The previous prime is 315025030403. The next prime is 315025030417. The reversal of 315025030405 is 504030520513.

It is not a de Polignac number, because 315025030405 - 21 = 315025030403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315025030403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272115 + ... + 839104.

It is an arithmetic number, because the mean of its divisors is an integer number (16551621900).

Almost surely, 2315025030405 is an apocalyptic number.

It is an amenable number.

315025030405 is a deficient number, since it is larger than the sum of its proper divisors (82213895195).

315025030405 is a wasteful number, since it uses less digits than its factorization.

315025030405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111345 (or 1111314 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 315025030405 its reverse (504030520513), we get a palindrome (819055550918).

The spelling of 315025030405 in words is "three hundred fifteen billion, twenty-five million, thirty thousand, four hundred five".

Divisors: 1 5 31 59 155 295 961 1829 4805 9145 56699 283495 1111219 5556095 34447789 65561921 172238945 327809605 1067881459 2032419551 5339407295 10162097755 63005006081 315025030405