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485939256480 = 25345237122961
BaseRepresentation
bin1110001001001000011…
…11001001110010100000
31201110021221102221020000
413010210033021302200
530430200422201410
61011123140420000
750052012346116
oct7044417116240
91643257387200
10485939256480
111780a4050807
127a2180a7600
1336a930916b2
141973ba57ab6
15c991501dc0
hex71243c9ca0

485939256480 has 480 divisors, whose sum is σ = 1814807731968. Its totient is φ = 122198630400.

The previous prime is 485939256379. The next prime is 485939256511. The reversal of 485939256480 is 84652939584.

485939256480 is a `hidden beast` number, since 48 + 5 + 93 + 9 + 25 + 6 + 480 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a super-2 number, since 2×4859392564802 (a number of 24 digits) contains 22 as substring.

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, 21152200 + ... + 21175160.

Almost surely, 2485939256480 is an apocalyptic number.

485939256480 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 485939256480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (907403865984).

485939256480 is an abundant number, since it is smaller than the sum of its proper divisors (1328868475488).

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

485939256480 is a wasteful number, since it uses less digits than its factorization.

485939256480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23082 (or 23065 counting only the distinct ones).

The product of its (nonzero) digits is 74649600, while the sum is 63.

The spelling of 485939256480 in words is "four hundred eighty-five billion, nine hundred thirty-nine million, two hundred fifty-six thousand, four hundred eighty".