Search a number
-
+
70648 = 238831
BaseRepresentation
bin10001001111111000
310120220121
4101033320
54230043
61303024
7412654
oct211770
9116817
1070648
1149096
1234a74
1326206
141ba64
1515ded
hex113f8

70648 has 8 divisors (see below), whose sum is σ = 132480. Its totient is φ = 35320.

The previous prime is 70639. The next prime is 70657. The reversal of 70648 is 84607.

It is an interprime number because it is at equal distance from previous prime (70639) and next prime (70657).

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×706482 = 9982279808, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 70648.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4408 + ... + 4423.

It is an arithmetic number, because the mean of its divisors is an integer number (16560).

270648 is an apocalyptic number.

It is an amenable number.

70648 is a deficient number, since it is larger than the sum of its proper divisors (61832).

70648 is a wasteful number, since it uses less digits than its factorization.

70648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8837 (or 8833 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 70648 is about 265.7969149558. The cubic root of 70648 is about 41.3396336794.

The spelling of 70648 in words is "seventy thousand, six hundred forty-eight".

Divisors: 1 2 4 8 8831 17662 35324 70648