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64212604654201 = 431493316387307
BaseRepresentation
bin11101001100110101010010…
…11111011001001001111001
322102100122221211020200101021
432212122221133121021321
531404024403242413301
6344322510252022441
716345131126614533
oct1646325137311171
9272318854220337
1064212604654201
111950745a343163
1272509bb461a21
1329aa2b8195a53
1411bdc99bb0853
157654b588e8a1
hex3a66a97d9279

64212604654201 has 4 divisors (see below), whose sum is σ = 65705921041552. Its totient is φ = 62719288266852.

The previous prime is 64212604654183. The next prime is 64212604654223. The reversal of 64212604654201 is 10245640621246.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64212604654201 - 25 = 64212604654169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 1493316387307 = 64212604654201 / (6 + 4 + 2 + 1 + 2 + 6 + 0 + 4 + 6 + 5 + 4 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64212604654241) 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, 746658193611 + ... + 746658193696.

It is an arithmetic number, because the mean of its divisors is an integer number (16426480260388).

Almost surely, 264212604654201 is an apocalyptic number.

It is an amenable number.

64212604654201 is a deficient number, since it is larger than the sum of its proper divisors (1493316387351).

64212604654201 is a wasteful number, since it uses less digits than its factorization.

64212604654201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1493316387350.

The product of its (nonzero) digits is 552960, while the sum is 43.

The spelling of 64212604654201 in words is "sixty-four trillion, two hundred twelve billion, six hundred four million, six hundred fifty-four thousand, two hundred one".

Divisors: 1 43 1493316387307 64212604654201