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70916 = 2217729
BaseRepresentation
bin10001010100000100
310121021112
4101110010
54232131
61304152
7413516
oct212404
9117245
1070916
114930a
1235058
1326381
141bbb6
151602b
hex11504

70916 has 6 divisors (see below), whose sum is σ = 124110. Its totient is φ = 35456.

The previous prime is 70913. The next prime is 70919. The reversal of 70916 is 61907.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70913) and next prime (70919).

It can be written as a sum of positive squares in only one way, i.e., 64516 + 6400 = 254^2 + 80^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70891 and 70900.

It is not an unprimeable number, because it can be changed into a prime (70913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8861 + ... + 8868.

It is an arithmetic number, because the mean of its divisors is an integer number (20685).

270916 is an apocalyptic number.

It is an amenable number.

70916 is a deficient number, since it is larger than the sum of its proper divisors (53194).

70916 is a wasteful number, since it uses less digits than its factorization.

70916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17733 (or 17731 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 70916 is about 266.3005820497. The cubic root of 70916 is about 41.3918410645.

Subtracting from 70916 its reverse (61907), we obtain a palindrome (9009).

The spelling of 70916 in words is "seventy thousand, nine hundred sixteen".

Divisors: 1 2 4 17729 35458 70916