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355379121 = 3243391193
BaseRepresentation
bin10101001011101…
…010011110110001
3220202201010111200
4111023222132301
51211434112441
655133001413
711543446506
oct2513523661
9822633450
10355379121
11172669659
129b023269
135881a706
14352ab4ad
15212ec7b6
hex152ea7b1

355379121 has 12 divisors (see below), whose sum is σ = 514516548. Its totient is φ = 236369664.

The previous prime is 355379093. The next prime is 355379153. The reversal of 355379121 is 121973553.

355379121 is a `hidden beast` number, since 35 + 537 + 91 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 146894400 + 208484721 = 12120^2 + 14439^2 .

It is not a de Polignac number, because 355379121 - 210 = 355378097 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (355369121) 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, 41700 + ... + 49493.

It is an arithmetic number, because the mean of its divisors is an integer number (42876379).

Almost surely, 2355379121 is an apocalyptic number.

It is an amenable number.

355379121 is a deficient number, since it is larger than the sum of its proper divisors (159137427).

355379121 is a wasteful number, since it uses less digits than its factorization.

355379121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91632 (or 91629 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 355379121 is about 18851.5018234622. The cubic root of 355379121 is about 708.3218456761.

The spelling of 355379121 in words is "three hundred fifty-five million, three hundred seventy-nine thousand, one hundred twenty-one".

Divisors: 1 3 9 433 1299 3897 91193 273579 820737 39486569 118459707 355379121