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424420145 = 51913111429
BaseRepresentation
bin11001010011000…
…010001100110001
31002120121202222122
4121103002030301
51332122421040
6110040444025
713342340342
oct3123021461
91076552878
10424420145
111a8635156
12ba179615
1369c118a6
14405200c9
15273d91b5
hex194c2331

424420145 has 16 divisors (see below), whose sum is σ = 513976320. Its totient is φ = 336436800.

The previous prime is 424420121. The next prime is 424420187. The reversal of 424420145 is 541024424.

It is not a de Polignac number, because 424420145 - 226 = 357311281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296291 + ... + 297719.

It is an arithmetic number, because the mean of its divisors is an integer number (32123520).

Almost surely, 2424420145 is an apocalyptic number.

It is an amenable number.

424420145 is a deficient number, since it is larger than the sum of its proper divisors (89556175).

424420145 is a wasteful number, since it uses less digits than its factorization.

424420145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1936.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 424420145 is about 20601.4597783749. The cubic root of 424420145 is about 751.5052111723.

Adding to 424420145 its reverse (541024424), we get a palindrome (965444569).

It can be divided in two parts, 4244 and 20145, that added together give a cube (24389 = 293).

The spelling of 424420145 in words is "four hundred twenty-four million, four hundred twenty thousand, one hundred forty-five".

Divisors: 1 5 191 311 955 1429 1555 7145 59401 272939 297005 444419 1364695 2222095 84884029 424420145