Search a number
-
+
43068720 = 2435179453
BaseRepresentation
bin1010010001001…
…0110100110000
310000001010011210
42210102310300
542011144340
64135040120
71032035532
oct244226460
9100033153
1043068720
1122347192
1212510040
138bcc566
145a11852
153bab180
hex2912d30

43068720 has 40 divisors (see below), whose sum is σ = 133513776. Its totient is φ = 11484928.

The previous prime is 43068691. The next prime is 43068743. The reversal of 43068720 is 2786034.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89487 + ... + 89966.

Almost surely, 243068720 is an apocalyptic number.

43068720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43068720 is an abundant number, since it is smaller than the sum of its proper divisors (90445056).

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

43068720 is a wasteful number, since it uses less digits than its factorization.

43068720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179469 (or 179463 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 43068720 is about 6562.6762833466. The cubic root of 43068720 is about 350.5263373378.

The spelling of 43068720 in words is "forty-three million, sixty-eight thousand, seven hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 179453 358906 538359 717812 897265 1076718 1435624 1794530 2153436 2691795 2871248 3589060 4306872 5383590 7178120 8613744 10767180 14356240 21534360 43068720