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630055895040 = 217345111383
BaseRepresentation
bin10010010101100100100…
…00100000000000000000
32020020021200022201110000
421022302100200000000
540310323302120130
61201235500240000
763343241513115
oct11126220400000
92206250281400
10630055895040
11223229144380
12a2138540000
134754c792ca0
14226cdcbc90c
15115c8838260
hex92b2420000

630055895040 has 1440 divisors, whose sum is σ = 2685736823616. Its totient is φ = 139292835840.

The previous prime is 630055895017. The next prime is 630055895069. The reversal of 630055895040 is 40598550036.

630055895040 is a `hidden beast` number, since 6 + 3 + 0 + 0 + 558 + 9 + 50 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (1440).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7591034839 + ... + 7591034921.

Almost surely, 2630055895040 is an apocalyptic number.

630055895040 is a gapful number since it is divisible by the number (60) 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 630055895040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1342868411808).

630055895040 is an abundant number, since it is smaller than the sum of its proper divisors (2055680928576).

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

630055895040 is an equidigital number, since it uses as much as digits as its factorization.

630055895040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 45.

The spelling of 630055895040 in words is "six hundred thirty billion, fifty-five million, eight hundred ninety-five thousand, forty".