Search a number
-
+
12575890 = 251257589
BaseRepresentation
bin101111111110…
…010010010010
3212122220212201
4233332102102
511204412030
61125313414
7211615255
oct57762222
925586781
1012575890
11710a4a8
12426586a
1327b4172
14195509c
1511862ca
hexbfe492

12575890 has 8 divisors (see below), whose sum is σ = 22636620. Its totient is φ = 5030352.

The previous prime is 12575887. The next prime is 12575923. The reversal of 12575890 is 9857521.

It can be written as a sum of positive squares in 2 ways, for example, as 12439729 + 136161 = 3527^2 + 369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 628785 + ... + 628804.

Almost surely, 212575890 is an apocalyptic number.

12575890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12575890 is a deficient number, since it is larger than the sum of its proper divisors (10060730).

12575890 is a wasteful number, since it uses less digits than its factorization.

12575890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257596.

The product of its (nonzero) digits is 25200, while the sum is 37.

The square root of 12575890 is about 3546.2501321819. The cubic root of 12575890 is about 232.5481612951.

The spelling of 12575890 in words is "twelve million, five hundred seventy-five thousand, eight hundred ninety".

Divisors: 1 2 5 10 1257589 2515178 6287945 12575890