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64204130 = 256420413
BaseRepresentation
bin1111010011101…
…0110101100010
311110210220111202
43310322311202
5112414013010
610212041202
71406504024
oct364726542
9143726452
1064204130
1133272571
1219603202
13103bc713
148754014
1559836a5
hex3d3ad62

64204130 has 8 divisors (see below), whose sum is σ = 115567452. Its totient is φ = 25681648.

The previous prime is 64204103. The next prime is 64204141. The reversal of 64204130 is 3140246.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 61418569 + 2785561 = 7837^2 + 1669^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3210197 + ... + 3210216.

Almost surely, 264204130 is an apocalyptic number.

64204130 is a deficient number, since it is larger than the sum of its proper divisors (51363322).

64204130 is a wasteful number, since it uses less digits than its factorization.

64204130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6420420.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 64204130 is about 8012.7479680819. The cubic root of 64204130 is about 400.4248194946.

Adding to 64204130 its reverse (3140246), we get a palindrome (67344376).

The spelling of 64204130 in words is "sixty-four million, two hundred four thousand, one hundred thirty".

Divisors: 1 2 5 10 6420413 12840826 32102065 64204130