Search a number
-
+
70648564 = 2272523163
BaseRepresentation
bin1000011011000…
…00001011110100
311220221022121111
410031200023310
5121041223224
611002124404
71515334330
oct415401364
9156838544
1070648564
1136974348
121b7b0704
1311837aac
1495507c0
156307d94
hex43602f4

70648564 has 12 divisors (see below), whose sum is σ = 141297184. Its totient is φ = 30277944.

The previous prime is 70648559. The next prime is 70648607. The reversal of 70648564 is 46584607.

70648564 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 1261554 + ... + 1261609.

Almost surely, 270648564 is an apocalyptic number.

It is an amenable number.

70648564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

70648564 is a wasteful number, since it uses less digits than its factorization.

70648564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2523174 (or 2523172 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 70648564 is about 8405.2700135094. The cubic root of 70648564 is about 413.3974368724.

The spelling of 70648564 in words is "seventy million, six hundred forty-eight thousand, five hundred sixty-four".

Divisors: 1 2 4 7 14 28 2523163 5046326 10092652 17662141 35324282 70648564