Search a number
-
+
10031025 = 352791693
BaseRepresentation
bin100110010000…
…111110110001
3200212121222110
4212100332301
510031443100
6554555533
7151155654
oct46207661
920777873
1010031025
115731504
123438ba9
132102a24
14149189b
15d32250
hex990fb1

10031025 has 24 divisors (see below), whose sum is σ = 16804480. Its totient is φ = 5279040.

The previous prime is 10030991. The next prime is 10031027. The reversal of 10031025 is 52013001.

10031025 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10031025 - 218 = 9768881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10031025.

It is not an unprimeable number, because it can be changed into a prime (10031027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5079 + ... + 6771.

Almost surely, 210031025 is an apocalyptic number.

10031025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10031025 is a deficient number, since it is larger than the sum of its proper divisors (6773455).

10031025 is a wasteful number, since it uses less digits than its factorization.

10031025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 10031025 is about 3167.1793444641. The cubic root of 10031025 is about 215.6660434368. Note that the first 3 decimals are identical.

Adding to 10031025 its reverse (52013001), we get a palindrome (62044026).

It can be divided in two parts, 100 and 31025, that added together give a triangular number (31125 = T249).

The spelling of 10031025 in words is "ten million, thirty-one thousand, twenty-five".

Divisors: 1 3 5 15 25 75 79 237 395 1185 1693 1975 5079 5925 8465 25395 42325 126975 133747 401241 668735 2006205 3343675 10031025