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40908970 = 2517240641
BaseRepresentation
bin1001110000001…
…1100010101010
32211222101120001
42130003202222
540433041340
64020453214
71004502064
oct234034252
984871501
1040908970
1121101573
121184a20a
1386244bb
14560c734
1538d129a
hex27038aa

40908970 has 16 divisors (see below), whose sum is σ = 77968008. Its totient is φ = 15400960.

The previous prime is 40908949. The next prime is 40908971. The reversal of 40908970 is 7980904.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28185481 + 12723489 = 5309^2 + 3567^2 .

It is not an unprimeable number, because it can be changed into a prime (40908971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120151 + ... + 120490.

Almost surely, 240908970 is an apocalyptic number.

40908970 is a deficient number, since it is larger than the sum of its proper divisors (37059038).

40908970 is a wasteful number, since it uses less digits than its factorization.

40908970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240665.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 40908970 is about 6396.0120387629. The cubic root of 40908970 is about 344.5663388290.

The spelling of 40908970 in words is "forty million, nine hundred eight thousand, nine hundred seventy".

Divisors: 1 2 5 10 17 34 85 170 240641 481282 1203205 2406410 4090897 8181794 20454485 40908970