Search a number
-
+
43142770 = 25111723071
BaseRepresentation
bin1010010010010…
…0111001110010
310000011212202101
42210210321302
542021032040
64140411014
71032464446
oct244447162
9100155671
1043142770
1122397890
1212546a6a
138c27188
145a30826
153bc309a
hex2924e72

43142770 has 32 divisors (see below), whose sum is σ = 89703936. Its totient is φ = 14764800.

The previous prime is 43142713. The next prime is 43142791. The reversal of 43142770 is 7724134.

It is a super-2 number, since 2×431427702 = 3722597206545800, which contains 22 as substring.

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, 9666 + ... + 13405.

It is an arithmetic number, because the mean of its divisors is an integer number (2803248).

Almost surely, 243142770 is an apocalyptic number.

43142770 is an abundant number, since it is smaller than the sum of its proper divisors (46561166).

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

43142770 is a wasteful number, since it uses less digits than its factorization.

43142770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23106.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 43142770 is about 6568.3156136105. The cubic root of 43142770 is about 350.7271142468.

The spelling of 43142770 in words is "forty-three million, one hundred forty-two thousand, seven hundred seventy".

Divisors: 1 2 5 10 11 17 22 34 55 85 110 170 187 374 935 1870 23071 46142 115355 230710 253781 392207 507562 784414 1268905 1961035 2537810 3922070 4314277 8628554 21571385 43142770