10100280 has 64 divisors (see below), whose sum is σ = 30742560. Its totient is φ = 2654208.

The previous prime is 10100273. The next prime is 10100287. The reversal of 10100280 is 8200101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10100273) and next prime (10100287).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8184 + ... + 9336.

Almost surely, 2^10100280 is an apocalyptic number.

10100280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10100280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15371280).

10100280 is an abundant number, since it is smaller than the sum of its proper divisors (20642280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10100280 is a wasteful number, since it uses less digits than its factorization.

10100280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1236 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 10100280 is about 3178.0937682831. The cubic root of 10100280 is about 216.1612307871.

Adding to 10100280 its reverse (8200101), we get a palindrome (18300381).

The spelling of 10100280 in words is "ten million, one hundred thousand, two hundred eighty".