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420031032 = 23317501293
BaseRepresentation
bin11001000010010…
…010101000111000
31002021100210020220
4121002102220320
51330011443112
6105402420040
713260130161
oct3102225070
91067323226
10420031032
111a6107593
12b8801620
1369035b95
143dada768
1526d1d98c
hex19092a38

420031032 has 16 divisors (see below), whose sum is σ = 1050077640. Its totient is φ = 140010336.

The previous prime is 420030911. The next prime is 420031033. The reversal of 420031032 is 230130024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420031033) 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, 8750623 + ... + 8750670.

Almost surely, 2420031032 is an apocalyptic number.

It is an amenable number.

420031032 is an abundant number, since it is smaller than the sum of its proper divisors (630046608).

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

420031032 is a wasteful number, since it uses less digits than its factorization.

420031032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17501302 (or 17501298 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 420031032 is about 20494.6586212115. The cubic root of 420031032 is about 748.9056822905.

Adding to 420031032 its reverse (230130024), we get a palindrome (650161056).

The spelling of 420031032 in words is "four hundred twenty million, thirty-one thousand, thirty-two".

Divisors: 1 2 3 4 6 8 12 24 17501293 35002586 52503879 70005172 105007758 140010344 210015516 420031032