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492865909648 = 2472628655497
BaseRepresentation
bin1110010110000010001…
…10001111001110010000
31202010011200011101001221
413023001012033032100
531033342133102043
61014230334534424
750415451052200
oct7130106171620
91663150141057
10492865909648
11180028a58862
127b62b967414
1337628126638
1419bd7960400
15cc4967d8ed
hex72c118f390

492865909648 has 30 divisors (see below), whose sum is σ = 1110834264966. Its totient is φ = 211228246656.

The previous prime is 492865909607. The next prime is 492865909649. The reversal of 492865909648 is 846909568294.

It can be written as a sum of positive squares in only one way, i.e., 483903879424 + 8962030224 = 695632^2 + 94668^2 .

It is not an unprimeable number, because it can be changed into a prime (492865909649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 314326965 + ... + 314328532.

Almost surely, 2492865909648 is an apocalyptic number.

It is an amenable number.

492865909648 is an abundant number, since it is smaller than the sum of its proper divisors (617968355318).

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

492865909648 is a wasteful number, since it uses less digits than its factorization.

492865909648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628655519 (or 628655506 counting only the distinct ones).

The product of its (nonzero) digits is 268738560, while the sum is 70.

The spelling of 492865909648 in words is "four hundred ninety-two billion, eight hundred sixty-five million, nine hundred nine thousand, six hundred forty-eight".

Divisors: 1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 628655497 1257310994 2514621988 4400588479 5029243976 8801176958 10058487952 17602353916 30804119353 35204707832 61608238706 70409415664 123216477412 246432954824 492865909648