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212006151 = 3273365177
BaseRepresentation
bin11001010001011…
…11010100000111
3112202221000202200
430220233110013
5413233144101
633012005543
75153010510
oct1450572407
9482830680
10212006151
11a97433a5
125b0008b3
1334bcc036
1420229a07
151392b986
hexca2f507

212006151 has 12 divisors (see below), whose sum is σ = 349978512. Its totient is φ = 121146336.

The previous prime is 212006149. The next prime is 212006159. The reversal of 212006151 is 151600212.

212006151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212006151 - 21 = 212006149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212006159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1682526 + ... + 1682651.

It is an arithmetic number, because the mean of its divisors is an integer number (29164876).

Almost surely, 2212006151 is an apocalyptic number.

212006151 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212006151 is a deficient number, since it is larger than the sum of its proper divisors (137972361).

212006151 is a wasteful number, since it uses less digits than its factorization.

212006151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365190 (or 3365187 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 212006151 is about 14560.4310032361. The cubic root of 212006151 is about 596.2789625054.

Adding to 212006151 its reverse (151600212), we get a palindrome (363606363).

The spelling of 212006151 in words is "two hundred twelve million, six thousand, one hundred fifty-one".

Divisors: 1 3 7 9 21 63 3365177 10095531 23556239 30286593 70668717 212006151