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420652981248 = 21031931383607
BaseRepresentation
bin1100001111100001101…
…11110001110000000000
31111012210000210112010020
412013300313301300000
523342444130344443
6521124553133440
742251113226223
oct6076067616000
91435700715106
10420652981248
11152441706945
12696379ba280
133088a3a1bc6
14165070a35ba
15ae1eb4a583
hex61f0df1c00

420652981248 has 352 divisors, whose sum is σ = 1223467991040. Its totient is φ = 128005816320.

The previous prime is 420652981193. The next prime is 420652981261. The reversal of 420652981248 is 842189256024.

It is a self number, because there is not a number n which added to its sum of digits gives 420652981248.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 693002961 + ... + 693003567.

Almost surely, 2420652981248 is an apocalyptic number.

420652981248 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420652981248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611733995520).

420652981248 is an abundant number, since it is smaller than the sum of its proper divisors (802815009792).

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

420652981248 is a wasteful number, since it uses less digits than its factorization.

420652981248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 420652981248 in words is "four hundred twenty billion, six hundred fifty-two million, nine hundred eighty-one thousand, two hundred forty-eight".