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420645231359 = 1515874745707
BaseRepresentation
bin1100001111100000110…
…10001101101011111111
31111012202111012210021022
412013300122031223333
523342440134400414
6521124115054355
742250660320623
oct6076032155377
91435674183238
10420645231359
111524382a3281
12696352a13bb
13308888ba582
1416506047183
15ae1e11918e
hex61f068daff

420645231359 has 8 divisors (see below), whose sum is σ = 424152398208. Its totient is φ = 417147557400.

The previous prime is 420645231287. The next prime is 420645231373. The reversal of 420645231359 is 953132546024.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 420645231359 - 232 = 416350264063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420645231389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2284217 + ... + 2461490.

It is an arithmetic number, because the mean of its divisors is an integer number (53019049776).

Almost surely, 2420645231359 is an apocalyptic number.

420645231359 is a deficient number, since it is larger than the sum of its proper divisors (3507166849).

420645231359 is a wasteful number, since it uses less digits than its factorization.

420645231359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4746445.

The product of its (nonzero) digits is 777600, while the sum is 44.

The spelling of 420645231359 in words is "four hundred twenty billion, six hundred forty-five million, two hundred thirty-one thousand, three hundred fifty-nine".

Divisors: 1 151 587 88637 4745707 716601757 2785730009 420645231359