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219970029 = 3357120533
BaseRepresentation
bin11010001110001…
…11100111101101
3120022220122011010
431013013213231
5422303020104
633454415433
75310500016
oct1507074755
9508818133
10219970029
11103192814
1261801579
1336759ba6
142130000d
15144a1489
hexd1c79ed

219970029 has 8 divisors (see below), whose sum is σ = 293389792. Its totient is φ = 146598480.

The previous prime is 219970027. The next prime is 219970063. The reversal of 219970029 is 920079912.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 219970029 - 21 = 219970027 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 (219970027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 447 + ... + 20979.

It is an arithmetic number, because the mean of its divisors is an integer number (36673724).

Almost surely, 2219970029 is an apocalyptic number.

It is an amenable number.

219970029 is a deficient number, since it is larger than the sum of its proper divisors (73419763).

219970029 is a wasteful number, since it uses less digits than its factorization.

219970029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24107.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 219970029 is about 14831.3866175756. The cubic root of 219970029 is about 603.6536589114.

The spelling of 219970029 in words is "two hundred nineteen million, nine hundred seventy thousand, twenty-nine".

Divisors: 1 3 3571 10713 20533 61599 73323343 219970029