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74970111 = 324990037
BaseRepresentation
bin1000111011111…
…11001111111111
312020001212122210
410131333033333
5123143020421
611234511503
71600143516
oct435771777
9166055583
1074970111
1139356177
1221135593
13126bbb18
149d5767d
1568ad576
hex477f3ff

74970111 has 4 divisors (see below), whose sum is σ = 99960152. Its totient is φ = 49980072.

The previous prime is 74970097. The next prime is 74970139. The reversal of 74970111 is 11107947.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11107947 = 33702649.

It is not a de Polignac number, because 74970111 - 26 = 74970047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74970151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12495016 + ... + 12495021.

It is an arithmetic number, because the mean of its divisors is an integer number (24990038).

Almost surely, 274970111 is an apocalyptic number.

74970111 is a deficient number, since it is larger than the sum of its proper divisors (24990041).

74970111 is a wasteful number, since it uses less digits than its factorization.

74970111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24990040.

The product of its (nonzero) digits is 1764, while the sum is 30.

The square root of 74970111 is about 8658.5282236648. The cubic root of 74970111 is about 421.6603044098.

The spelling of 74970111 in words is "seventy-four million, nine hundred seventy thousand, one hundred eleven".

Divisors: 1 3 24990037 74970111