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40570070 = 254394349
BaseRepresentation
bin1001101011000…
…0110011010110
32211100011200012
42122300303112
540341220240
64005320222
71001561042
oct232606326
984304605
1040570070
112099a992
1211706072
138536178
145561022
153865b65
hex26b0cd6

40570070 has 16 divisors (see below), whose sum is σ = 74725200. Its totient is φ = 15850464.

The previous prime is 40570037. The next prime is 40570081. The reversal of 40570070 is 7007504.

It is a happy number.

40570070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 46745 + ... + 47604.

It is an arithmetic number, because the mean of its divisors is an integer number (4670325).

Almost surely, 240570070 is an apocalyptic number.

40570070 is a deficient number, since it is larger than the sum of its proper divisors (34155130).

40570070 is a wasteful number, since it uses less digits than its factorization.

40570070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94399.

The product of its (nonzero) digits is 980, while the sum is 23.

The square root of 40570070 is about 6369.4638706880. The cubic root of 40570070 is about 343.6122083551.

Adding to 40570070 its reverse (7007504), we get a palindrome (47577574).

The spelling of 40570070 in words is "forty million, five hundred seventy thousand, seventy".

Divisors: 1 2 5 10 43 86 215 430 94349 188698 471745 943490 4057007 8114014 20285035 40570070