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70072 = 2319461
BaseRepresentation
bin10001000110111000
310120010021
4101012320
54220242
61300224
7411202
oct210670
9116107
1070072
1148712
1234674
1325b82
141b772
1515b67
hex111b8

70072 has 16 divisors (see below), whose sum is σ = 138600. Its totient is φ = 33120.

The previous prime is 70067. The next prime is 70079. The reversal of 70072 is 27007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70079) 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 3 ways as a sum of consecutive naturals, for example, 79 + ... + 382.

270072 is an apocalyptic number.

It is an amenable number.

70072 is a deficient number, since it is larger than the sum of its proper divisors (68528).

70072 is a wasteful number, since it uses less digits than its factorization.

70072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 482 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 16.

The square root of 70072 is about 264.7111633460. The cubic root of 70072 is about 41.2269782773.

Adding to 70072 its reverse (27007), we get a palindrome (97079).

The spelling of 70072 in words is "seventy thousand, seventy-two", and thus it is an iban number.