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69983214 = 23753149211
BaseRepresentation
bin1000010101111…
…01101111101110
311212200111220220
410022331233232
5120403430324
610535552210
71506563460
oct412755756
9155614826
1069983214
113655a474
121b52b666
1311663cb2
14941a130
156225b79
hex42bdbee

69983214 has 64 divisors (see below), whose sum is σ = 164851200. Its totient is φ = 19393920.

The previous prime is 69983197. The next prime is 69983233. The reversal of 69983214 is 41238996.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 331569 + ... + 331779.

It is an arithmetic number, because the mean of its divisors is an integer number (2575800).

Almost surely, 269983214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69983214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82425600).

69983214 is an abundant number, since it is smaller than the sum of its proper divisors (94867986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69983214 is a wasteful number, since it uses less digits than its factorization.

69983214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425.

The product of its digits is 93312, while the sum is 42.

The square root of 69983214 is about 8365.5970498226. The cubic root of 69983214 is about 412.0955845401.

The spelling of 69983214 in words is "sixty-nine million, nine hundred eighty-three thousand, two hundred fourteen".

Divisors: 1 2 3 6 7 14 21 42 53 106 149 159 211 298 318 371 422 447 633 742 894 1043 1113 1266 1477 2086 2226 2954 3129 4431 6258 7897 8862 11183 15794 22366 23691 31439 33549 47382 55279 62878 67098 78281 94317 110558 156562 165837 188634 220073 234843 331674 440146 469686 660219 1320438 1666267 3332534 4998801 9997602 11663869 23327738 34991607 69983214