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434539120 = 245192631087
BaseRepresentation
bin11001111001101…
…000101001110000
31010021122212121111
4121321220221300
51342220222440
6111041403104
713524343621
oct3171505160
91107585544
10434539120
11203316744
12101639494
136c045652
14419d5a48
15282374ea
hex19e68a70

434539120 has 80 divisors (see below), whose sum is σ = 1068503040. Its totient is φ = 163890432.

The previous prime is 434539109. The next prime is 434539141. The reversal of 434539120 is 21935434.

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

It is a congruent number.

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, 399217 + ... + 400303.

It is an arithmetic number, because the mean of its divisors is an integer number (13356288).

Almost surely, 2434539120 is an apocalyptic number.

434539120 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 434539120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534251520).

434539120 is an abundant number, since it is smaller than the sum of its proper divisors (633963920).

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

434539120 is a wasteful number, since it uses less digits than its factorization.

434539120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1382 (or 1376 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 434539120 is about 20845.6019342210. The cubic root of 434539120 is about 757.4307982108.

The spelling of 434539120 in words is "four hundred thirty-four million, five hundred thirty-nine thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 19 20 38 40 76 80 95 152 190 263 304 380 526 760 1052 1087 1315 1520 2104 2174 2630 4208 4348 4997 5260 5435 8696 9994 10520 10870 17392 19988 20653 21040 21740 24985 39976 41306 43480 49970 79952 82612 86960 99940 103265 165224 199880 206530 285881 330448 399760 413060 571762 826120 1143524 1429405 1652240 2287048 2858810 4574096 5431739 5717620 10863478 11435240 21726956 22870480 27158695 43453912 54317390 86907824 108634780 217269560 434539120