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423101420 = 225721114323
BaseRepresentation
bin11001001110000…
…000001111101100
31002111010210000222
4121032000033230
51331303221140
6105552310512
713325205560
oct3116001754
91074123028
10423101420
111a79143a5
12b9842438
136986c591
14402996a0
15272285b5
hex193803ec

423101420 has 48 divisors (see below), whose sum is σ = 1020327168. Its totient is φ = 144365760.

The previous prime is 423101417. The next prime is 423101447. The reversal of 423101420 is 24101324.

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, 22379 + ... + 36701.

It is an arithmetic number, because the mean of its divisors is an integer number (21256816).

Almost surely, 2423101420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423101420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510163584).

423101420 is an abundant number, since it is smaller than the sum of its proper divisors (597225748).

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

423101420 is a wasteful number, since it uses less digits than its factorization.

423101420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14550 (or 14548 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 423101420 is about 20569.4292580032. The cubic root of 423101420 is about 750.7260642881.

Adding to 423101420 its reverse (24101324), we get a palindrome (447202744).

The spelling of 423101420 in words is "four hundred twenty-three million, one hundred one thousand, four hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 211 422 844 1055 1477 2110 2954 4220 5908 7385 14323 14770 28646 29540 57292 71615 100261 143230 200522 286460 401044 501305 1002610 2005220 3022153 6044306 12088612 15110765 21155071 30221530 42310142 60443060 84620284 105775355 211550710 423101420