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4430801980 = 2251166130469
BaseRepresentation
bin1000010000001100…
…01010110000111100
3102102210100001200001
410020012022300330
533033241130410
62011355244044
7214541124013
oct41006126074
912383301601
104430801980
111974088120
12a37a49624
13557c59027
14300655a7a
151adec033a
hex10818ac3c

4430801980 has 48 divisors (see below), whose sum is σ = 10166254560. Its totient is φ = 1608710400.

The previous prime is 4430801959. The next prime is 4430801983. The reversal of 4430801980 is 891080344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4430801983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130186 + ... + 160654.

It is an arithmetic number, because the mean of its divisors is an integer number (211796970).

Almost surely, 24430801980 is an apocalyptic number.

It is an amenable number.

4430801980 is an abundant number, since it is smaller than the sum of its proper divisors (5735452580).

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

4430801980 is a wasteful number, since it uses less digits than its factorization.

4430801980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31150 (or 31148 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 4430801980 is about 66564.2695445537. The cubic root of 4430801980 is about 1642.4573981554.

The spelling of 4430801980 in words is "four billion, four hundred thirty million, eight hundred one thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 661 1322 2644 3305 6610 7271 13220 14542 29084 30469 36355 60938 72710 121876 145420 152345 304690 335159 609380 670318 1340636 1675795 3351590 6703180 20140009 40280018 80560036 100700045 201400090 221540099 402800180 443080198 886160396 1107700495 2215400990 4430801980