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70002 = 2323889
BaseRepresentation
bin10001000101110010
310120000200
4101011302
54220002
61300030
7411042
oct210562
9116020
1070002
1148659
1234616
1325b2a
141b722
1515b1c
hex11172

70002 has 12 divisors (see below), whose sum is σ = 151710. Its totient is φ = 23328.

The previous prime is 70001. The next prime is 70003. The reversal of 70002 is 20007.

It is an interprime number because it is at equal distance from previous prime (70001) and next prime (70003).

It can be written as a sum of positive squares in only one way, i.e., 53361 + 16641 = 231^2 + 129^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (70001) 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 5 ways as a sum of consecutive naturals, for example, 1927 + ... + 1962.

270002 is an apocalyptic number.

70002 is an abundant number, since it is smaller than the sum of its proper divisors (81708).

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

70002 is a wasteful number, since it uses less digits than its factorization.

70002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897 (or 3894 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 9.

The square root of 70002 is about 264.5789107242. The cubic root of 70002 is about 41.2132454977.

Adding to 70002 its reverse (20007), we get a palindrome (90009).

The spelling of 70002 in words is "seventy thousand, two", and thus it is an iban number.

Divisors: 1 2 3 6 9 18 3889 7778 11667 23334 35001 70002