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434270320 = 245113115919
BaseRepresentation
bin11001111000100…
…111000001110000
31010021011012212221
4121320213001300
51342133122240
6111031530424
713522144141
oct3170470160
91107135787
10434270320
112031527a0
12101529a14
136bc801b3
1441965ac8
15281d2a4a
hex19e27070

434270320 has 80 divisors (see below), whose sum is σ = 1137070080. Its totient is φ = 152812800.

The previous prime is 434270311. The next prime is 434270323. The reversal of 434270320 is 23072434.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434270323) by changing a digit.

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, 19321 + ... + 35239.

It is an arithmetic number, because the mean of its divisors is an integer number (14213376).

Almost surely, 2434270320 is an apocalyptic number.

434270320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 434270320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568535040).

434270320 is an abundant number, since it is smaller than the sum of its proper divisors (702799760).

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

434270320 is a wasteful number, since it uses less digits than its factorization.

434270320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15974 (or 15968 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 434270320 is about 20839.1535336731. The cubic root of 434270320 is about 757.2745871936.

The spelling of 434270320 in words is "four hundred thirty-four million, two hundred seventy thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 31 40 44 55 62 80 88 110 124 155 176 220 248 310 341 440 496 620 682 880 1240 1364 1705 2480 2728 3410 5456 6820 13640 15919 27280 31838 63676 79595 127352 159190 175109 254704 318380 350218 493489 636760 700436 875545 986978 1273520 1400872 1751090 1973956 2467445 2801744 3502180 3947912 4934890 5428379 7004360 7895824 9869780 10856758 14008720 19739560 21713516 27141895 39479120 43427032 54283790 86854064 108567580 217135160 434270320