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201478430 = 25154913007
BaseRepresentation
bin11000000001001…
…01000100011110
3112001010011110002
430000211010132
5403034302210
631554214302
74664352446
oct1400450436
9461104402
10201478430
11a38027aa
1257584392
133298420a
141ca89126
1512a4c4a5
hexc02511e

201478430 has 16 divisors (see below), whose sum is σ = 362923200. Its totient is φ = 80533152.

The previous prime is 201478427. The next prime is 201478439. The reversal of 201478430 is 34874102.

It is a junction number, because it is equal to n+sod(n) for n = 201478393 and 201478402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201478439) 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, 8987 + ... + 21993.

It is an arithmetic number, because the mean of its divisors is an integer number (22682700).

Almost surely, 2201478430 is an apocalyptic number.

201478430 is a deficient number, since it is larger than the sum of its proper divisors (161444770).

201478430 is a wasteful number, since it uses less digits than its factorization.

201478430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14563.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 201478430 is about 14194.3097753994. The cubic root of 201478430 is about 586.2409966748.

The spelling of 201478430 in words is "two hundred one million, four hundred seventy-eight thousand, four hundred thirty".

Divisors: 1 2 5 10 1549 3098 7745 13007 15490 26014 65035 130070 20147843 40295686 100739215 201478430