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441680988 = 223737142111
BaseRepresentation
bin11010010100111…
…000010001011100
31010210002201102010
4122110320101130
51401032242423
6111454431220
713642140450
oct3224702134
91123081363
10441680988
11207354511
12103b02510
13706762c8
1442934660
1528b98693
hex1a53845c

441680988 has 48 divisors (see below), whose sum is σ = 1209657344. Its totient is φ = 122783040.

The previous prime is 441680977. The next prime is 441681001. The reversal of 441680988 is 889086144.

It is a super-2 number, since 2×4416809882 = 390164190321312288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 67948 + ... + 74163.

Almost surely, 2441680988 is an apocalyptic number.

It is an amenable number.

441680988 is an abundant number, since it is smaller than the sum of its proper divisors (767976356).

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

441680988 is a wasteful number, since it uses less digits than its factorization.

441680988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142162 (or 142160 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 441680988 is about 21016.2077454521. The cubic root of 441680988 is about 761.5578548364.

The spelling of 441680988 in words is "four hundred forty-one million, six hundred eighty thousand, nine hundred eighty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 37 42 74 84 111 148 222 259 444 518 777 1036 1554 3108 142111 284222 426333 568444 852666 994777 1705332 1989554 2984331 3979108 5258107 5968662 10516214 11937324 15774321 21032428 31548642 36806749 63097284 73613498 110420247 147226996 220840494 441680988