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70652071 = 721441879
BaseRepresentation
bin1000011011000…
…01000010100111
311220221111102101
410031201002213
5121041331241
611002152531
71515350500
oct415410247
9156844371
1070652071
1136976a46
121b7b2747
1311839579
149551ba7
156308e31
hex43610a7

70652071 has 6 divisors (see below), whose sum is σ = 82187160. Its totient is φ = 60558876.

The previous prime is 70652063. The next prime is 70652077. The reversal of 70652071 is 17025607.

It is not a de Polignac number, because 70652071 - 23 = 70652063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70652077) 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 5 ways as a sum of consecutive naturals, for example, 720891 + ... + 720988.

It is an arithmetic number, because the mean of its divisors is an integer number (13697860).

Almost surely, 270652071 is an apocalyptic number.

70652071 is a deficient number, since it is larger than the sum of its proper divisors (11535089).

70652071 is a wasteful number, since it uses less digits than its factorization.

70652071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441893 (or 1441886 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 70652071 is about 8405.4786300365. The cubic root of 70652071 is about 413.4042771191.

Adding to 70652071 its reverse (17025607), we get a palindrome (87677678).

The spelling of 70652071 in words is "seventy million, six hundred fifty-two thousand, seventy-one".

Divisors: 1 7 49 1441879 10093153 70652071