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4728972144400 = 2452763172
BaseRepresentation
bin100010011010000110010…
…1101000110111100010000
3121202002022012101112020021
41010310030231012330100
51104434413332110100
614020243152553224
7665441224000000
oct104641455067420
917662265345207
104728972144400
111563600545159
1264460b252814
13283c2b6b968a
14124c52370000
1583028806a1a
hex44d0cb46f10

4728972144400 has 315 divisors, whose sum is σ = 13296844209439. Its totient is φ = 1616247171840.

The previous prime is 4728972144361. The next prime is 4728972144419. The reversal of 4728972144400 is 44412798274.

The square root of 4728972144400 is 2174620.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 1908829612816 + 2820142531584 = 1381604^2 + 1679328^2 .

It is a super-2 number, since 2×47289721444002 (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 14917893042 + ... + 14917893358.

Almost surely, 24728972144400 is an apocalyptic number.

4728972144400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

4728972144400 is the 2174620-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4728972144400

4728972144400 is an abundant number, since it is smaller than the sum of its proper divisors (8567872065039).

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

4728972144400 is an frugal number, since it uses more digits than its factorization.

4728972144400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694 (or 331 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 52.

The spelling of 4728972144400 in words is "four trillion, seven hundred twenty-eight billion, nine hundred seventy-two million, one hundred forty-four thousand, four hundred".