Search a number
-
+
70005208 = 237133569
BaseRepresentation
bin1000010110000…
…11000111011000
311212201122002111
410023003013120
5120410131313
610540242104
71510014550
oct413030730
9155648074
1070005208
1136574a49
121b540334
1311671000
149424160
15622c43d
hex42c31d8

70005208 has 64 divisors (see below), whose sum is σ = 162792000. Its totient is φ = 27645696.

The previous prime is 70005193. The next prime is 70005227. The reversal of 70005208 is 80250007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122748 + ... + 123316.

It is an arithmetic number, because the mean of its divisors is an integer number (2543625).

Almost surely, 270005208 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 70005208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81396000).

70005208 is an abundant number, since it is smaller than the sum of its proper divisors (92786792).

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

70005208 is a wasteful number, since it uses less digits than its factorization.

70005208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621 (or 591 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 70005208 is about 8366.9114970818. The cubic root of 70005208 is about 412.1387505149.

The spelling of 70005208 in words is "seventy million, five thousand, two hundred eight".

Divisors: 1 2 4 7 8 13 14 26 28 52 56 91 104 169 182 338 364 569 676 728 1138 1183 1352 2197 2276 2366 3983 4394 4552 4732 7397 7966 8788 9464 14794 15379 15932 17576 29588 30758 31864 51779 59176 61516 96161 103558 123032 192322 207116 384644 414232 673127 769288 1250093 1346254 2500186 2692508 5000372 5385016 8750651 10000744 17501302 35002604 70005208