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201388229 = 7142720161
BaseRepresentation
bin11000000000011…
…11000011000101
3112000221120201022
430000033003011
5403023410404
631552240525
74663525460
oct1400170305
9460846638
10201388229
11a3750a59
1257540145
1332952143
141ca642d7
1512a308be
hexc00f0c5

201388229 has 8 divisors (see below), whose sum is σ = 230330688. Its totient is φ = 172488960.

The previous prime is 201388223. The next prime is 201388237. The reversal of 201388229 is 922883102.

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

It is a de Polignac number, because none of the positive numbers 2k-201388229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201388223) 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, 92 + ... + 20069.

It is an arithmetic number, because the mean of its divisors is an integer number (28791336).

Almost surely, 2201388229 is an apocalyptic number.

It is an amenable number.

201388229 is a deficient number, since it is larger than the sum of its proper divisors (28942459).

201388229 is a wasteful number, since it uses less digits than its factorization.

201388229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21595.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 201388229 is about 14191.1320549137. The cubic root of 201388229 is about 586.1534977840.

The spelling of 201388229 in words is "two hundred one million, three hundred eighty-eight thousand, two hundred twenty-nine".

Divisors: 1 7 1427 9989 20161 141127 28769747 201388229