Search a number
-
+
43109019520 = 27579622549
BaseRepresentation
bin101000001001011111…
…110110111110000000
311010021100020002111121
4220021133312332000
51201241402111040
631445355522024
73054165422440
oct501137667600
9133240202447
1043109019520
1117311a10466
128431159314
1340b0217a98
14212d472120
1511c4912c4a
hexa097f6f80

43109019520 has 64 divisors (see below), whose sum is σ = 117780012000. Its totient is φ = 14780233728.

The previous prime is 43109019479. The next prime is 43109019529. The reversal of 43109019520 is 2591090134.

43109019520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43109019529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4806795 + ... + 4815754.

Almost surely, 243109019520 is an apocalyptic number.

43109019520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43109019520 is an abundant number, since it is smaller than the sum of its proper divisors (74670992480).

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

43109019520 is an equidigital number, since it uses as much as digits as its factorization.

43109019520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9622575 (or 9622563 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The spelling of 43109019520 in words is "forty-three billion, one hundred nine million, nineteen thousand, five hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 32 35 40 56 64 70 80 112 128 140 160 224 280 320 448 560 640 896 1120 2240 4480 9622549 19245098 38490196 48112745 67357843 76980392 96225490 134715686 153960784 192450980 269431372 307921568 336789215 384901960 538862744 615843136 673578430 769803920 1077725488 1231686272 1347156860 1539607840 2155450976 2694313720 3079215680 4310901952 5388627440 6158431360 8621803904 10777254880 21554509760 43109019520