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70205328894 = 23472391041653
BaseRepresentation
bin100000101100010010…
…0000100110111111110
320201012201201020011110
41001120210010313332
52122240031011034
652130223502450
75033516310111
oct1013044046776
9221181636143
1070205328894
1127857094778
1211733757a26
13680ab4933c
14357ddc4578
151c5d66dde9
hex1058904dfe

70205328894 has 32 divisors (see below), whose sum is σ = 143998248960. Its totient is φ = 22808012192.

The previous prime is 70205328887. The next prime is 70205328913. The reversal of 70205328894 is 49882350207.

It is a super-2 number, since 2×702053288942 (a number of 22 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 453429 + ... + 588224.

It is an arithmetic number, because the mean of its divisors is an integer number (4499945280).

Almost surely, 270205328894 is an apocalyptic number.

70205328894 is an abundant number, since it is smaller than the sum of its proper divisors (73792920066).

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

70205328894 is a wasteful number, since it uses less digits than its factorization.

70205328894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041944.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 70205328894 in words is "seventy billion, two hundred five million, three hundred twenty-eight thousand, eight hundred ninety-four".

Divisors: 1 2 3 6 47 94 141 239 282 478 717 1434 11233 22466 33699 67398 1041653 2083306 3124959 6249918 48957691 97915382 146873073 248955067 293746146 497910134 746865201 1493730402 11700888149 23401776298 35102664447 70205328894