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70274689 = 8321012
BaseRepresentation
bin1000011000001…
…00111010000001
311220020022202021
410030010322001
5120442242224
610550121441
71512216322
oct414047201
9156208667
1070274689
1136739461
121b650281
1311736874
149494449
1562821e4
hex4304e81

70274689 has 9 divisors (see below), whose sum is σ = 71842819. Its totient is φ = 68740600.

The previous prime is 70274671. The next prime is 70274707. The reversal of 70274689 is 98647207.

The square root of 70274689 is 8383.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (70274671) and next prime (70274707).

It can be written as a sum of positive squares in only one way, i.e., 67519089 + 2755600 = 8217^2 + 1660^2 .

It is not a de Polignac number, because 70274689 - 217 = 70143617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70274629) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 695739 + ... + 695839.

Almost surely, 270274689 is an apocalyptic number.

70274689 is the 8383-rd square number.

70274689 is the 4192-nd centered octagonal number.

It is an amenable number.

70274689 is a deficient number, since it is larger than the sum of its proper divisors (1568130).

70274689 is an frugal number, since it uses more digits than its factorization.

70274689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368 (or 184 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 43.

The cubic root of 70274689 is about 412.6669081519. Note that the first 3 decimals are identical.

The spelling of 70274689 in words is "seventy million, two hundred seventy-four thousand, six hundred eighty-nine".

Divisors: 1 83 101 6889 8383 10201 695789 846683 70274689