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4621720530240 = 2632511319233189
BaseRepresentation
bin100001101000001010000…
…0000101010110101000000
3121100211110122120000110100
41003100110000222311000
51101210240423431430
613455104502402400
7654623354215152
oct103202400526500
917324418500410
104621720530240
11152207382a000
12627878a30400
13276a987179a8
1411d99a1b6ad2
158034cb50960
hex4341402ad40

4621720530240 has 2688 divisors, whose sum is σ = 20048095641600. Its totient is φ = 971506483200.

The previous prime is 4621720530239. The next prime is 4621720530241. The reversal of 4621720530240 is 420350271264.

4621720530240 is a `hidden beast` number, since 4 + 62 + 1 + 7 + 20 + 530 + 2 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (4621720530239) and next prime (4621720530241).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 4621720530195 and 4621720530204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4621720530241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 51929444116 + ... + 51929444204.

Almost surely, 24621720530240 is an apocalyptic number.

4621720530240 is a gapful number since it is divisible by the number (40) 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 4621720530240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10024047820800).

4621720530240 is an abundant number, since it is smaller than the sum of its proper divisors (15426375111360).

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

4621720530240 is a wasteful number, since it uses less digits than its factorization.

4621720530240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 4621720530240 in words is "four trillion, six hundred twenty-one billion, seven hundred twenty million, five hundred thirty thousand, two hundred forty".