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70488169 = 233064703
BaseRepresentation
bin1000011001110…
…01000001101001
311220122011120221
410030321001221
5121021110134
610554450041
71514065603
oct414710151
9156564527
1070488169
1136874894
121b733921
13117aca9b
14950c173
1562c55b4
hex4339069

70488169 has 4 divisors (see below), whose sum is σ = 73552896. Its totient is φ = 67423444.

The previous prime is 70488167. The next prime is 70488179. The reversal of 70488169 is 96188407.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 96188407 = 713741201.

It is a cyclic number.

It is not a de Polignac number, because 70488169 - 21 = 70488167 is a prime.

It is a super-2 number, since 2×704881692 = 9937163937945122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70488167) 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, 1532329 + ... + 1532374.

It is an arithmetic number, because the mean of its divisors is an integer number (18388224).

Almost surely, 270488169 is an apocalyptic number.

It is an amenable number.

70488169 is a deficient number, since it is larger than the sum of its proper divisors (3064727).

70488169 is a wasteful number, since it uses less digits than its factorization.

70488169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064726.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 70488169 is about 8395.7232565158. The cubic root of 70488169 is about 413.0843513646.

The spelling of 70488169 in words is "seventy million, four hundred eighty-eight thousand, one hundred sixty-nine".

Divisors: 1 23 3064703 70488169