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4487400444 = 2231721997061
BaseRepresentation
bin1000010110111100…
…00100101111111100
3102120201211120011110
410023132010233330
533142233303234
62021140322020
7216126163062
oct41336045774
912521746143
104487400444
1119a302540a
12a529a3310
135668b4947
14307d8a032
151b3e501e9
hex10b784bfc

4487400444 has 24 divisors (see below), whose sum is σ = 11086519248. Its totient is φ = 1407811840.

The previous prime is 4487400439. The next prime is 4487400473. The reversal of 4487400444 is 4440047844.

It is a super-2 number, since 2×44874004442 = 40273525489622794272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10998327 + ... + 10998734.

It is an arithmetic number, because the mean of its divisors is an integer number (461938302).

Almost surely, 24487400444 is an apocalyptic number.

It is an amenable number.

4487400444 is an abundant number, since it is smaller than the sum of its proper divisors (6599118804).

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

4487400444 is a wasteful number, since it uses less digits than its factorization.

4487400444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21997085 (or 21997083 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 39.

The square root of 4487400444 is about 66988.0619513656. The cubic root of 4487400444 is about 1649.4213390503.

It can be divided in two parts, 4487400 and 444, that added together give a palindrome (4487844).

The spelling of 4487400444 in words is "four billion, four hundred eighty-seven million, four hundred thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 21997061 43994122 65991183 87988244 131982366 263964732 373950037 747900074 1121850111 1495800148 2243700222 4487400444