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70070208 = 2631367419
BaseRepresentation
bin1000010110100…
…10111111000000
311212211221020220
410023102333000
5120414221313
610541503040
71510405215
oct413227700
9155757226
1070070208
113660986a
121b571a80
1311694780
14943db0c
156241823
hex42d2fc0

70070208 has 112 divisors (see below), whose sum is σ = 203118720. Its totient is φ = 21187584.

The previous prime is 70070207. The next prime is 70070237. The reversal of 70070208 is 80207007.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70070207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167023 + ... + 167441.

It is an arithmetic number, because the mean of its divisors is an integer number (1813560).

Almost surely, 270070208 is an apocalyptic number.

70070208 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70070208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101559360).

70070208 is an abundant number, since it is smaller than the sum of its proper divisors (133048512).

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

70070208 is a wasteful number, since it uses less digits than its factorization.

70070208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514 (or 504 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 70070208 is about 8370.7949443288. The cubic root of 70070208 is about 412.2662683221.

The spelling of 70070208 in words is "seventy million, seventy thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 67 78 96 104 134 156 192 201 208 268 312 402 416 419 536 624 804 832 838 871 1072 1248 1257 1608 1676 1742 2144 2496 2514 2613 3216 3352 3484 4288 5028 5226 5447 6432 6704 6968 10056 10452 10894 12864 13408 13936 16341 20112 20904 21788 26816 27872 28073 32682 40224 41808 43576 55744 56146 65364 80448 83616 84219 87152 112292 130728 167232 168438 174304 224584 261456 336876 348608 364949 449168 522912 673752 729898 898336 1045824 1094847 1347504 1459796 1796672 2189694 2695008 2919592 4379388 5390016 5839184 8758776 11678368 17517552 23356736 35035104 70070208