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70852020 = 22353113797
BaseRepresentation
bin1000011100100…
…01110110110100
311221022122200220
410032101312310
5121114231040
611010334340
71520142441
oct416216664
9157278626
1070852020
1136aa3198
121b88a3b0
13118a9595
1495a49c8
1563482d0
hex4391db4

70852020 has 48 divisors (see below), whose sum is σ = 199075968. Its totient is φ = 18828160.

The previous prime is 70852013. The next prime is 70852021. The reversal of 70852020 is 2025807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70852021) 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 15 ways as a sum of consecutive naturals, for example, 16762 + ... + 20558.

It is an arithmetic number, because the mean of its divisors is an integer number (4147416).

Almost surely, 270852020 is an apocalyptic number.

It is an amenable number.

70852020 is an abundant number, since it is smaller than the sum of its proper divisors (128223948).

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

70852020 is a wasteful number, since it uses less digits than its factorization.

70852020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120 (or 4118 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 70852020 is about 8417.3641955187. The cubic root of 70852020 is about 413.7938949362.

Adding to 70852020 its reverse (2025807), we get a palindrome (72877827).

The spelling of 70852020 in words is "seventy million, eight hundred fifty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 311 622 933 1244 1555 1866 3110 3732 3797 4665 6220 7594 9330 11391 15188 18660 18985 22782 37970 45564 56955 75940 113910 227820 1180867 2361734 3542601 4723468 5904335 7085202 11808670 14170404 17713005 23617340 35426010 70852020