Base | Representation |
---|---|
bin | 11100011010000110… |
… | …100010111000010101 |
3 | 2220201210012102111000 |
4 | 130122012202320111 |
5 | 444432142210141 |
6 | 22002430333513 |
7 | 2126612424153 |
oct | 343206427025 |
9 | 86653172430 |
10 | 30502694421 |
11 | 11a32a80871 |
12 | 5ab335a299 |
13 | 2b51581714 |
14 | 16951023d3 |
15 | bd7d255b6 |
hex | 71a1a2e15 |
30502694421 has 16 divisors (see below), whose sum is σ = 46747425600. Its totient is φ = 19633917744.
The previous prime is 30502694419. The next prime is 30502694423. The reversal of 30502694421 is 12449620503.
It is a happy number.
30502694421 is a `hidden beast` number, since 30 + 502 + 69 + 44 + 21 = 666.
It is an interprime number because it is at equal distance from previous prime (30502694419) and next prime (30502694423).
It is not a de Polignac number, because 30502694421 - 21 = 30502694419 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (30502694423) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19477311 + ... + 19478876.
It is an arithmetic number, because the mean of its divisors is an integer number (2921714100).
Almost surely, 230502694421 is an apocalyptic number.
It is an amenable number.
30502694421 is a deficient number, since it is larger than the sum of its proper divisors (16244731179).
30502694421 is a wasteful number, since it uses less digits than its factorization.
30502694421 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38956225 (or 38956219 counting only the distinct ones).
The product of its (nonzero) digits is 51840, while the sum is 36.
The spelling of 30502694421 in words is "thirty billion, five hundred two million, six hundred ninety-four thousand, four hundred twenty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.073 sec. • engine limits •