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20025303415 = 513308081591
BaseRepresentation
bin10010101001100110…
…011110000101110111
31220200121010211000021
4102221212132011313
5312002434202130
613111031430011
71306150161535
oct225146360567
956617124007
1020025303415
118546841937
123a6a525307
131b719c6c80
14d7d7d1155
157c30b837a
hex4a999e177

20025303415 has 8 divisors (see below), whose sum is σ = 25878853728. Its totient is φ = 14787916320.

The previous prime is 20025303413. The next prime is 20025303421. The reversal of 20025303415 is 51430352002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20025303415 - 21 = 20025303413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20025303415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20025303413) 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 7 ways as a sum of consecutive naturals, for example, 154040731 + ... + 154040860.

It is an arithmetic number, because the mean of its divisors is an integer number (3234856716).

Almost surely, 220025303415 is an apocalyptic number.

20025303415 is a deficient number, since it is larger than the sum of its proper divisors (5853550313).

20025303415 is a wasteful number, since it uses less digits than its factorization.

20025303415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308081609.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 20025303415 its reverse (51430352002), we get a palindrome (71455655417).

The spelling of 20025303415 in words is "twenty billion, twenty-five million, three hundred three thousand, four hundred fifteen".

Divisors: 1 5 13 65 308081591 1540407955 4005060683 20025303415