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205130974 = 2234459369
BaseRepresentation
bin11000011101000…
…00110011011110
3112021222201210111
430032200303132
5410003142344
632204400234
75040404326
oct1416406336
9467881714
10205130974
11a5877a34
125884607a
1333662899
141d35a286
151301e834
hexc3a0cde

205130974 has 8 divisors (see below), whose sum is σ = 321074640. Its totient is φ = 98106096.

The previous prime is 205130971. The next prime is 205131013. The reversal of 205130974 is 479031502.

205130974 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205130971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2229639 + ... + 2229730.

It is an arithmetic number, because the mean of its divisors is an integer number (40134330).

Almost surely, 2205130974 is an apocalyptic number.

205130974 is a deficient number, since it is larger than the sum of its proper divisors (115943666).

205130974 is a wasteful number, since it uses less digits than its factorization.

205130974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459394.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 205130974 is about 14322.3941434384. The cubic root of 205130974 is about 589.7623997798.

The spelling of 205130974 in words is "two hundred five million, one hundred thirty thousand, nine hundred seventy-four".

Divisors: 1 2 23 46 4459369 8918738 102565487 205130974