Search a number
-
+
64134015466 = 21491971092461
BaseRepresentation
bin111011101110101011…
…110110100111101010
320010112121110112212011
4323232223312213222
52022321301443331
645243542310134
74430205064633
oct735653664752
9203477415764
1064134015466
1125220a86074
121051a42834a
136081071ca1
14316593088a
151a0564b3b1
hexeeeaf69ea

64134015466 has 16 divisors (see below), whose sum is σ = 97338364200. Its totient is φ = 31690079680.

The previous prime is 64134015457. The next prime is 64134015469. The reversal of 64134015466 is 66451043146.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 62567518225 + 1566497241 = 250135^2 + 39579^2 .

It is a super-2 number, since 2×641340154662 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64134015469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487525 + ... + 604936.

Almost surely, 264134015466 is an apocalyptic number.

64134015466 is a deficient number, since it is larger than the sum of its proper divisors (33204348734).

64134015466 is a wasteful number, since it uses less digits than its factorization.

64134015466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092809.

The product of its (nonzero) digits is 207360, while the sum is 40.

The spelling of 64134015466 in words is "sixty-four billion, one hundred thirty-four million, fifteen thousand, four hundred sixty-six".

Divisors: 1 2 149 197 298 394 29353 58706 1092461 2184922 162776689 215214817 325553378 430429634 32067007733 64134015466