Search a number
-
+
70310031672 = 23317172328509
BaseRepresentation
bin100000101111011001…
…1011111000100111000
320201111000201200101010
41001132303133010320
52122443332003142
652144443553520
75036230260036
oct1013663370470
9221430650333
1070310031672
11279001a84a1
121176282b8a0
13682674854a
14358dc7b556
151c67951e9c
hex105ecdf138

70310031672 has 32 divisors (see below), whose sum is σ = 186114790800. Its totient is φ = 22058049024.

The previous prime is 70310031641. The next prime is 70310031683. The reversal of 70310031672 is 27613001307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86163847 + ... + 86164662.

Almost surely, 270310031672 is an apocalyptic number.

It is an amenable number.

70310031672 is an abundant number, since it is smaller than the sum of its proper divisors (115804759128).

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

70310031672 is a wasteful number, since it uses less digits than its factorization.

70310031672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172328535 (or 172328531 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 30.

Adding to 70310031672 its reverse (27613001307), we get a palindrome (97923032979).

The spelling of 70310031672 in words is "seventy billion, three hundred ten million, thirty-one thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 17 24 34 51 68 102 136 204 408 172328509 344657018 516985527 689314036 1033971054 1378628072 2067942108 2929584653 4135884216 5859169306 8788753959 11718338612 17577507918 23436677224 35155015836 70310031672