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70520152 = 2331328163
BaseRepresentation
bin1000011010000…
…00110101011000
311220200210110111
410031000311120
5121023121102
610555254104
71514261053
oct415006530
9156623414
1070520152
113689691a
121b74a334
13117c1501
149519a9a
1562cecd7
hex4340d58

70520152 has 16 divisors (see below), whose sum is σ = 132652440. Its totient is φ = 35146176.

The previous prime is 70520147. The next prime is 70520159. The reversal of 70520152 is 25102507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70520159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11578 + ... + 16585.

Almost surely, 270520152 is an apocalyptic number.

It is an amenable number.

70520152 is a deficient number, since it is larger than the sum of its proper divisors (62132288).

70520152 is a wasteful number, since it uses less digits than its factorization.

70520152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28482 (or 28478 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 70520152 is about 8397.6277602666. The cubic root of 70520152 is about 413.1468189593.

Adding to 70520152 its reverse (25102507), we get a palindrome (95622659).

The spelling of 70520152 in words is "seventy million, five hundred twenty thousand, one hundred fifty-two".

Divisors: 1 2 4 8 313 626 1252 2504 28163 56326 112652 225304 8815019 17630038 35260076 70520152