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424322031 = 3737546103
BaseRepresentation
bin11001010010101…
…010001111101111
31002120102210101210
4121102222033233
51332111301111
6110034405503
713341451320
oct3122521757
91076383353
10424322031
111a8578471
12ba130893
1369ba9033
14404d6447
15273ba0a6
hex194aa3ef

424322031 has 16 divisors (see below), whose sum is σ = 664062464. Its totient is φ = 235916064.

The previous prime is 424322021. The next prime is 424322047. The reversal of 424322031 is 130223424.

It is not a de Polignac number, because 424322031 - 25 = 424321999 is a prime.

It is a super-2 number, since 2×4243220312 = 360098371983929922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 424321989 and 424322007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424322011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 272275 + ... + 273828.

It is an arithmetic number, because the mean of its divisors is an integer number (41503904).

Almost surely, 2424322031 is an apocalyptic number.

424322031 is a deficient number, since it is larger than the sum of its proper divisors (239740433).

424322031 is a wasteful number, since it uses less digits than its factorization.

424322031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546150.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 424322031 is about 20599.0784017150. The cubic root of 424322031 is about 751.4472977536.

Adding to 424322031 its reverse (130223424), we get a palindrome (554545455).

The spelling of 424322031 in words is "four hundred twenty-four million, three hundred twenty-two thousand, thirty-one".

Divisors: 1 3 7 21 37 111 259 777 546103 1638309 3822721 11468163 20205811 60617433 141440677 424322031