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20212607 = 234312039
BaseRepresentation
bin100110100011…
…0101101111111
31102000220111002
41031012231333
520133300412
62001120515
7333542612
oct115065577
942026432
1020212607
1110456038
12692913b
13425912c
142982179
151b93dc2
hex1346b7f

20212607 has 8 divisors (see below), whose sum is σ = 21150720. Its totient is φ = 19279480.

The previous prime is 20212603. The next prime is 20212639. The reversal of 20212607 is 70621202.

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

It is a cyclic number.

It is not a de Polignac number, because 20212607 - 22 = 20212603 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 (20212603) 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, 8894 + ... + 10932.

It is an arithmetic number, because the mean of its divisors is an integer number (2643840).

Almost surely, 220212607 is an apocalyptic number.

20212607 is a deficient number, since it is larger than the sum of its proper divisors (938113).

20212607 is a wasteful number, since it uses less digits than its factorization.

20212607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2493.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20212607 is about 4495.8433024295. The cubic root of 20212607 is about 272.4002137234.

Adding to 20212607 its reverse (70621202), we get a palindrome (90833809).

The spelling of 20212607 in words is "twenty million, two hundred twelve thousand, six hundred seven".

Divisors: 1 23 431 2039 9913 46897 878809 20212607