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206827401 = 31147133351
BaseRepresentation
bin11000101001111…
…10111110001001
3112102011220212010
430110332332021
5410421434101
632305010133
75061001224
oct1424767611
9472156763
10206827401
11a6826540
1259323949
1333b07aa1
141d67c5bb
15132572d6
hexc53ef89

206827401 has 16 divisors (see below), whose sum is σ = 307243008. Its totient is φ = 122682000.

The previous prime is 206827363. The next prime is 206827409. The reversal of 206827401 is 104728602.

It is not a de Polignac number, because 206827401 - 29 = 206826889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206827409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65125 + ... + 68226.

It is an arithmetic number, because the mean of its divisors is an integer number (19202688).

Almost surely, 2206827401 is an apocalyptic number.

It is an amenable number.

206827401 is a deficient number, since it is larger than the sum of its proper divisors (100415607).

206827401 is a wasteful number, since it uses less digits than its factorization.

206827401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133412.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 206827401 is about 14381.4950891762. The cubic root of 206827401 is about 591.3837110115.

The spelling of 206827401 in words is "two hundred six million, eight hundred twenty-seven thousand, four hundred one".

Divisors: 1 3 11 33 47 141 517 1551 133351 400053 1466861 4400583 6267497 18802491 68942467 206827401