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70452 = 223219103
BaseRepresentation
bin10001001100110100
310120122100
4101030310
54223302
61302100
7412254
oct211464
9116570
1070452
1148a28
1234930
13260b5
141b964
1515d1c
hex11334

70452 has 36 divisors (see below), whose sum is σ = 189280. Its totient is φ = 22032.

The previous prime is 70451. The next prime is 70457. The reversal of 70452 is 25407.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 16.

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 70452.

It is not an unprimeable number, because it can be changed into a prime (70451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 633 + ... + 735.

270452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94640).

70452 is an abundant number, since it is smaller than the sum of its proper divisors (118828).

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

70452 is a wasteful number, since it uses less digits than its factorization.

70452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 70452 is about 265.4279563271. The cubic root of 70452 is about 41.3013685113.

Adding to 70452 its reverse (25407), we get a palindrome (95859).

The spelling of 70452 in words is "seventy thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 19 36 38 57 76 103 114 171 206 228 309 342 412 618 684 927 1236 1854 1957 3708 3914 5871 7828 11742 17613 23484 35226 70452