100030312 has 64 divisors (see below), whose sum is σ = 209796480. Its totient is φ = 44470272.
The previous prime is 100030297. The next prime is 100030313. The reversal of 100030312 is 213030001.
It is not an unprimeable number, because it can be changed into a prime (100030313) 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, 353323 + ... + 353605.
It is an arithmetic number, because the mean of its divisors is an integer number (3278070).
Almost surely, 2100030312 is an apocalyptic number.
It is an amenable number.
100030312 is an abundant number, since it is smaller than the sum of its proper divisors (109766168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
100030312 is a wasteful number, since it uses less digits than its factorization.
100030312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 442 (or 438 counting only the distinct ones).
The product of its (nonzero) digits is 18, while the sum is 10.
The square root of 100030312 is about 10001.5154851652. The cubic root of 100030312 is about 464.2057772370.
Adding to 100030312 its reverse (213030001), we get a palindrome (313060313).
The spelling of 100030312 in words is "one hundred million, thirty thousand, three hundred twelve".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.062 sec. • engine limits •