Base | Representation |
---|---|
bin | 1000110100101… |
… | …01100101100111 |
3 | 12011021020210101 |
4 | 10122111211213 |
5 | 122421404111 |
6 | 11202204531 |
7 | 1556046301 |
oct | 432254547 |
9 | 164236711 |
10 | 74013031 |
11 | 388620a4 |
12 | 20953747 |
13 | 124452c1 |
14 | 9b88971 |
15 | 676ebc1 |
hex | 4695967 |
74013031 has 4 divisors (see below), whose sum is σ = 74345152. Its totient is φ = 73680912.
The previous prime is 74013013. The next prime is 74013059. The reversal of 74013031 is 13031047.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13031047 = 113 ⋅115319.
It is a cyclic number.
It is not a de Polignac number, because 74013031 - 211 = 74010983 is a prime.
It is a super-2 number, since 2×740130312 = 10955857515613922, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (74013001) 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, 165726 + ... + 166171.
It is an arithmetic number, because the mean of its divisors is an integer number (18586288).
Almost surely, 274013031 is an apocalyptic number.
74013031 is a deficient number, since it is larger than the sum of its proper divisors (332121).
74013031 is a wasteful number, since it uses less digits than its factorization.
74013031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 332120.
The product of its (nonzero) digits is 252, while the sum is 19.
The square root of 74013031 is about 8603.0826451918. The cubic root of 74013031 is about 419.8582874130.
Adding to 74013031 its reverse (13031047), we get a palindrome (87044078).
The spelling of 74013031 in words is "seventy-four million, thirteen thousand, thirty-one".
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