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70474013 = 159744129
BaseRepresentation
bin1000011001101…
…01100100011101
311220121110011122
410030311210131
5121020132023
610554300325
71514006411
oct414654435
9156543148
1070474013
1136865195
121b7276a5
13117a64cc
149506d41
1562c12c8
hex433591d

70474013 has 4 divisors (see below), whose sum is σ = 70519740. Its totient is φ = 70428288.

The previous prime is 70473929. The next prime is 70474051. The reversal of 70474013 is 31047407.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4507129 + 65966884 = 2123^2 + 8122^2 .

It is a cyclic number.

It is not a de Polignac number, because 70474013 - 216 = 70408477 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 (70474073) 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 3 ways as a sum of consecutive naturals, for example, 20468 + ... + 23661.

It is an arithmetic number, because the mean of its divisors is an integer number (17629935).

Almost surely, 270474013 is an apocalyptic number.

It is an amenable number.

70474013 is a deficient number, since it is larger than the sum of its proper divisors (45727).

70474013 is a wasteful number, since it uses less digits than its factorization.

70474013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45726.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 70474013 is about 8394.8801659106. The cubic root of 70474013 is about 413.0566965413.

The spelling of 70474013 in words is "seventy million, four hundred seventy-four thousand, thirteen".

Divisors: 1 1597 44129 70474013