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212035401 = 342617721
BaseRepresentation
bin11001010001101…
…10011101001001
3112202222111220000
430220312131021
5413240113101
633012353213
75153162004
oct1450663511
9482874800
10212035401
11a9763376
125b015809
1334c0c446
142023653b
1513935486
hexca36749

212035401 has 10 divisors (see below), whose sum is σ = 316744362. Its totient is φ = 141356880.

The previous prime is 212035399. The next prime is 212035409. The reversal of 212035401 is 104530212.

212035401 is a `hidden beast` number, since 2 + 120 + 3 + 540 + 1 = 666.

212035401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 158760000 + 53275401 = 12600^2 + 7299^2 .

It is not a de Polignac number, because 212035401 - 21 = 212035399 is a prime.

It is a super-2 number, since 2×2120354012 = 89918022554461602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212035409) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1308780 + ... + 1308941.

Almost surely, 2212035401 is an apocalyptic number.

It is an amenable number.

212035401 is a deficient number, since it is larger than the sum of its proper divisors (104708961).

212035401 is an equidigital number, since it uses as much as digits as its factorization.

212035401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2617733 (or 2617724 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 212035401 is about 14561.4354031462. The cubic root of 212035401 is about 596.3063836558.

Adding to 212035401 its reverse (104530212), we get a palindrome (316565613).

The spelling of 212035401 in words is "two hundred twelve million, thirty-five thousand, four hundred one".

Divisors: 1 3 9 27 81 2617721 7853163 23559489 70678467 212035401