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70914629 = 165742797
BaseRepresentation
bin1000011101000…
…01001001000101
311221102211120202
410032201021011
5121123232004
611011540245
71520523122
oct416411105
9157384522
1070914629
1137036235
121b8ba685
13118cbc26
1495bd749
15635bb1e
hex43a1245

70914629 has 4 divisors (see below), whose sum is σ = 70959084. Its totient is φ = 70870176.

The previous prime is 70914601. The next prime is 70914643. The reversal of 70914629 is 92641907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92641907 = 234027909.

It can be written as a sum of positive squares in 2 ways, for example, as 49773025 + 21141604 = 7055^2 + 4598^2 .

It is a cyclic number.

It is not a de Polignac number, because 70914629 - 220 = 69866053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70914592 and 70914601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70914029) 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, 19742 + ... + 23055.

It is an arithmetic number, because the mean of its divisors is an integer number (17739771).

Almost surely, 270914629 is an apocalyptic number.

It is an amenable number.

70914629 is a deficient number, since it is larger than the sum of its proper divisors (44455).

70914629 is a wasteful number, since it uses less digits than its factorization.

70914629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44454.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 70914629 is about 8421.0824126118. The cubic root of 70914629 is about 413.9157432367.

The spelling of 70914629 in words is "seventy million, nine hundred fourteen thousand, six hundred twenty-nine".

Divisors: 1 1657 42797 70914629