Base | Representation |
---|---|
bin | 11100001001111100… |
… | …000010010100011011 |
3 | 2220000212220112101002 |
4 | 130021330002110123 |
5 | 443403231113110 |
6 | 21515502015215 |
7 | 2120110355036 |
oct | 341174022433 |
9 | 86025815332 |
10 | 30231504155 |
11 | 11903994586 |
12 | 5a3857750b |
13 | 2b0a32cbc8 |
14 | 166b0ac01d |
15 | bbe107aa5 |
hex | 709f0251b |
30231504155 has 16 divisors (see below), whose sum is σ = 36738187200. Its totient is φ = 23879912448.
The previous prime is 30231504137. The next prime is 30231504217. The reversal of 30231504155 is 55140513203.
It is a cyclic number.
It is not a de Polignac number, because 30231504155 - 210 = 30231503131 is a prime.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46871 + ... + 250319.
It is an arithmetic number, because the mean of its divisors is an integer number (2296136700).
Almost surely, 230231504155 is an apocalyptic number.
30231504155 is a deficient number, since it is larger than the sum of its proper divisors (6506683045).
30231504155 is a wasteful number, since it uses less digits than its factorization.
30231504155 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 203830.
The product of its (nonzero) digits is 9000, while the sum is 29.
The spelling of 30231504155 in words is "thirty billion, two hundred thirty-one million, five hundred four thousand, one hundred fifty-five".
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