102693280 has 24 divisors (see below), whose sum is σ = 242613252. Its totient is φ = 41077248.

The previous prime is 102693259. The next prime is 102693287. The reversal of 102693280 is 82396201.

It can be written as a sum of positive squares in 2 ways, for example, as 88585744 + 14107536 = 9412^2 + 3756^2 .

It is not an unprimeable number, because it can be changed into a prime (102693287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320757 + ... + 321076.

Almost surely, 2^102693280 is an apocalyptic number.

102693280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102693280 is an abundant number, since it is smaller than the sum of its proper divisors (139919972).

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

102693280 is an equidigital number, since it uses as much as digits as its factorization.

102693280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641848 (or 641840 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 102693280 is about 10133.7692888678. The cubic root of 102693280 is about 468.2890560956.

The spelling of 102693280 in words is "one hundred two million, six hundred ninety-three thousand, two hundred eighty".