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70208892 = 223213413659
BaseRepresentation
bin1000010111101…
…00110101111100
311220002222111100
410023310311330
5120433141032
610544453100
71511523435
oct413646574
9156088440
1070208892
11366a3a86
121b61a190
1311712930
14947848c
15626c97c
hex42f4d7c

70208892 has 72 divisors (see below), whose sum is σ = 195839280. Its totient is φ = 21070080.

The previous prime is 70208867. The next prime is 70208899. The reversal of 70208892 is 29880207.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70208899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17359 + ... + 21017.

It is an arithmetic number, because the mean of its divisors is an integer number (2719990).

Almost surely, 270208892 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70208892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97919640).

70208892 is an abundant number, since it is smaller than the sum of its proper divisors (125630388).

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

70208892 is a wasteful number, since it uses less digits than its factorization.

70208892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3723 (or 3718 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 70208892 is about 8379.0746505805. The cubic root of 70208892 is about 412.5380769259.

The spelling of 70208892 in words is "seventy million, two hundred eight thousand, eight hundred ninety-two".

Divisors: 1 2 3 4 6 9 12 13 18 26 36 39 41 52 78 82 117 123 156 164 234 246 369 468 492 533 738 1066 1476 1599 2132 3198 3659 4797 6396 7318 9594 10977 14636 19188 21954 32931 43908 47567 65862 95134 131724 142701 150019 190268 285402 300038 428103 450057 570804 600076 856206 900114 1350171 1712412 1800228 1950247 2700342 3900494 5400684 5850741 7800988 11701482 17552223 23402964 35104446 70208892