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421421080 = 23517360899
BaseRepresentation
bin11001000111100…
…110000000011000
31002100222102001011
4121013212000120
51330340433310
6105452303304
713305006613
oct3107460030
91070872034
10421421080
111a6976993
12b9171b34
13694017b2
143dd7d17a
1526ee578a
hex191e6018

421421080 has 32 divisors (see below), whose sum is σ = 953694000. Its totient is φ = 167591296.

The previous prime is 421421053. The next prime is 421421081. The reversal of 421421080 is 80124124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421421081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23530 + ... + 37369.

Almost surely, 2421421080 is an apocalyptic number.

421421080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421421080 is an abundant number, since it is smaller than the sum of its proper divisors (532272920).

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

421421080 is a wasteful number, since it uses less digits than its factorization.

421421080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61083 (or 61079 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

The square root of 421421080 is about 20528.5430559502. The cubic root of 421421080 is about 749.7309138388.

The spelling of 421421080 in words is "four hundred twenty-one million, four hundred twenty-one thousand, eighty".

Divisors: 1 2 4 5 8 10 20 40 173 346 692 865 1384 1730 3460 6920 60899 121798 243596 304495 487192 608990 1217980 2435960 10535527 21071054 42142108 52677635 84284216 105355270 210710540 421421080