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40979770 = 25131947353
BaseRepresentation
bin1001110001010…
…0110100111010
32212002222200021
42130110310322
540442323040
64022201054
71005215356
oct234246472
985088607
1040979770
112114a787
121188318a
13864a7b0
14562a466
1538e724a
hex2714d3a

40979770 has 64 divisors (see below), whose sum is σ = 85639680. Its totient is φ = 13989888.

The previous prime is 40979761. The next prime is 40979773. The reversal of 40979770 is 7797904.

40979770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (40979773) 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 31 ways as a sum of consecutive naturals, for example, 115914 + ... + 116266.

It is an arithmetic number, because the mean of its divisors is an integer number (1338120).

Almost surely, 240979770 is an apocalyptic number.

40979770 is an abundant number, since it is smaller than the sum of its proper divisors (44659910).

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

40979770 is a wasteful number, since it uses less digits than its factorization.

40979770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439.

The product of its (nonzero) digits is 111132, while the sum is 43.

The square root of 40979770 is about 6401.5443449218. The cubic root of 40979770 is about 344.7650013464.

The spelling of 40979770 in words is "forty million, nine hundred seventy-nine thousand, seven hundred seventy".

Divisors: 1 2 5 10 13 19 26 38 47 65 94 95 130 190 235 247 353 470 494 611 706 893 1222 1235 1765 1786 2470 3055 3530 4465 4589 6110 6707 8930 9178 11609 13414 16591 22945 23218 33182 33535 45890 58045 67070 82955 87191 116090 165910 174382 215683 315229 431366 435955 630458 871910 1078415 1576145 2156830 3152290 4097977 8195954 20489885 40979770