Search a number
-
+
64810795117434 = 2337291940518547
BaseRepresentation
bin11101011110001111100000…
…11010111010101101111010
322111110211222202010202002020
432233013300122322231322
531443330002022224214
6345501400201415310
716436265630635262
oct1657076032725572
9274424882122066
1064810795117434
1119718116258a23
12732892419a536
132a21829c74432
141200c059b87a2
15775d2691d4a9
hex3af1f06bab7a

64810795117434 has 16 divisors (see below), whose sum is σ = 133124876457888. Its totient is φ = 21019717335312.

The previous prime is 64810795117423. The next prime is 64810795117459. The reversal of 64810795117434 is 43471159701846.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145970259052 + ... + 145970259495.

It is an arithmetic number, because the mean of its divisors is an integer number (8320304778618).

Almost surely, 264810795117434 is an apocalyptic number.

64810795117434 is an abundant number, since it is smaller than the sum of its proper divisors (68314081340454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64810795117434 is a wasteful number, since it uses less digits than its factorization.

64810795117434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291940518589.

The product of its (nonzero) digits is 20321280, while the sum is 60.

The spelling of 64810795117434 in words is "sixty-four trillion, eight hundred ten billion, seven hundred ninety-five million, one hundred seventeen thousand, four hundred thirty-four".

Divisors: 1 2 3 6 37 74 111 222 291940518547 583881037094 875821555641 1751643111282 10801799186239 21603598372478 32405397558717 64810795117434