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421561466 = 21031204443
BaseRepresentation
bin11001001000001…
…000010001111010
31002101020112121122
4121020020101322
51330404431331
6105455305242
713306133114
oct3110102172
91071215548
10421561466
111a6a62407
12b921b222
1369450671
143ddb83b4
152702217b
hex1920847a

421561466 has 8 divisors (see below), whose sum is σ = 632958624. Its totient is φ = 210575260.

The previous prime is 421561463. The next prime is 421561507. The reversal of 421561466 is 664165124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (421561463) 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 3 ways as a sum of consecutive naturals, for example, 100160 + ... + 104283.

It is an arithmetic number, because the mean of its divisors is an integer number (79119828).

Almost surely, 2421561466 is an apocalyptic number.

421561466 is a deficient number, since it is larger than the sum of its proper divisors (211397158).

421561466 is a wasteful number, since it uses less digits than its factorization.

421561466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205476.

The product of its digits is 34560, while the sum is 35.

The square root of 421561466 is about 20531.9620591896. The cubic root of 421561466 is about 749.8141560272.

The spelling of 421561466 in words is "four hundred twenty-one million, five hundred sixty-one thousand, four hundred sixty-six".

Divisors: 1 2 1031 2062 204443 408886 210780733 421561466