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70072852 = 22145912007
BaseRepresentation
bin1000010110100…
…11101000010100
311212212001212211
410023103220110
5120414312402
610541523204
71510416013
oct413235024
9155761784
1070072852
1136610853
121b573504
1311695a35
149440a7a
1562424d7
hex42d3a14

70072852 has 12 divisors (see below), whose sum is σ = 122721760. Its totient is φ = 35009496.

The previous prime is 70072841. The next prime is 70072853. The reversal of 70072852 is 25827007.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70072853) 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 3 ways as a sum of consecutive naturals, for example, 168 + ... + 11839.

Almost surely, 270072852 is an apocalyptic number.

It is an amenable number.

70072852 is a deficient number, since it is larger than the sum of its proper divisors (52648908).

70072852 is a wasteful number, since it uses less digits than its factorization.

70072852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13470 (or 13468 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 70072852 is about 8370.9528728813. The cubic root of 70072852 is about 412.2714536846.

Adding to 70072852 its reverse (25827007), we get a palindrome (95899859).

The spelling of 70072852 in words is "seventy million, seventy-two thousand, eight hundred fifty-two".

Divisors: 1 2 4 1459 2918 5836 12007 24014 48028 17518213 35036426 70072852