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20602242007 = 125935294637
BaseRepresentation
bin10011001011111111…
…010100001111010111
31222011210202022222021
4103023333110033113
5314143133221012
613244201314011
71326354111334
oct231377241727
958153668867
1020602242007
118812479396
123bab795907
131c343a9b59
14dd629398b
15808a7d007
hex4cbfd43d7

20602242007 has 8 divisors (see below), whose sum is σ = 20628896400. Its totient is φ = 20575606464.

The previous prime is 20602241993. The next prime is 20602242041. The reversal of 20602242007 is 70024220602.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20602242007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20602242707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4440693 + ... + 4445329.

It is an arithmetic number, because the mean of its divisors is an integer number (2578612050).

Almost surely, 220602242007 is an apocalyptic number.

20602242007 is a deficient number, since it is larger than the sum of its proper divisors (26654393).

20602242007 is a wasteful number, since it uses less digits than its factorization.

20602242007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9425.

The product of its (nonzero) digits is 2688, while the sum is 25.

Adding to 20602242007 its reverse (70024220602), we get a palindrome (90626462609).

The spelling of 20602242007 in words is "twenty billion, six hundred two million, two hundred forty-two thousand, seven".

Divisors: 1 1259 3529 4637 4443011 5837983 16363973 20602242007