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70520041 = 412816121
BaseRepresentation
bin1000011010000…
…00110011101001
311220200210022101
410031000303221
5121023120131
610555253401
71514260534
oct415006351
9156623271
1070520041
1136896829
121b74a261
13117c1447
149519a1b
1562cec61
hex4340ce9

70520041 has 8 divisors (see below), whose sum is σ = 72508968. Its totient is φ = 68544000.

The previous prime is 70520033. The next prime is 70520059. The reversal of 70520041 is 14002507.

It can be written as a sum of positive squares in 4 ways, for example, as 27225 + 70492816 = 165^2 + 8396^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70520041 - 23 = 70520033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70520011) 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, 8461 + ... + 14581.

It is an arithmetic number, because the mean of its divisors is an integer number (9063621).

Almost surely, 270520041 is an apocalyptic number.

It is an amenable number.

70520041 is a deficient number, since it is larger than the sum of its proper divisors (1988927).

70520041 is a wasteful number, since it uses less digits than its factorization.

70520041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6443.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 70520041 is about 8397.6211512547. The cubic root of 70520041 is about 413.1466021923.

Adding to 70520041 its reverse (14002507), we get a palindrome (84522548).

The spelling of 70520041 in words is "seventy million, five hundred twenty thousand, forty-one".

Divisors: 1 41 281 6121 11521 250961 1720001 70520041