Base | Representation |
---|---|
bin | 11100111001000111… |
… | …011100001110100010 |
3 | 2222002001021212010020 |
4 | 130321013130032202 |
5 | 1002013343214020 |
6 | 22130215014310 |
7 | 2145531226140 |
oct | 347107341642 |
9 | 88061255106 |
10 | 31023023010 |
11 | 1217a7623a1 |
12 | 601966a396 |
13 | 2c05303665 |
14 | 170426a590 |
15 | c18856c40 |
hex | 7391dc3a2 |
31023023010 has 64 divisors (see below), whose sum is σ = 85872441600. Its totient is φ = 7025916672.
The previous prime is 31023022999. The next prime is 31023023011. The reversal of 31023023010 is 1032032013.
31023023010 = 297552 + 297562 + ... + 297892.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is not an unprimeable number, because it can be changed into a prime (31023023011) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 654765 + ... + 700544.
It is an arithmetic number, because the mean of its divisors is an integer number (1341756900).
Almost surely, 231023023010 is an apocalyptic number.
31023023010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.
31023023010 is an abundant number, since it is smaller than the sum of its proper divisors (54849418590).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
31023023010 is a wasteful number, since it uses less digits than its factorization.
31023023010 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1355435.
The product of its (nonzero) digits is 108, while the sum is 15.
Adding to 31023023010 its reverse (1032032013), we get a palindrome (32055055023).
The spelling of 31023023010 in words is "thirty-one billion, twenty-three million, twenty-three thousand, ten".
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