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245031046 = 21313171941
BaseRepresentation
bin11101001101011…
…10000010000110
3122002001212101221
432212232002012
51000211443141
640151510554
76033505141
oct1646560206
9562055357
10245031046
1111634a4a7
126a08845a
133b9c2ab0
1424785058
15167a1bd1
hexe9ae086

245031046 has 16 divisors (see below), whose sum is σ = 398846448. Its totient is φ = 112226400.

The previous prime is 245031041. The next prime is 245031053. The reversal of 245031046 is 640130542.

It is a self number, because there is not a number n which added to its sum of digits gives 245031046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245031041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32565 + ... + 39376.

It is an arithmetic number, because the mean of its divisors is an integer number (24927903).

Almost surely, 2245031046 is an apocalyptic number.

245031046 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

245031046 is a deficient number, since it is larger than the sum of its proper divisors (153815402).

245031046 is a wasteful number, since it uses less digits than its factorization.

245031046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72087.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 245031046 is about 15653.4675391748. The cubic root of 245031046 is about 625.7589040505.

Adding to 245031046 its reverse (640130542), we get a palindrome (885161588).

The spelling of 245031046 in words is "two hundred forty-five million, thirty-one thousand, forty-six".

Divisors: 1 2 13 26 131 262 1703 3406 71941 143882 935233 1870466 9424271 18848542 122515523 245031046