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245403130 = 25731113089
BaseRepresentation
bin11101010000010…
…00110111111010
3122002202202210211
432220020313322
51000310400010
640203501334
76036615010
oct1650106772
9562682724
10245403130
11116584005
126a22784a
133bac326b
14248408b0
151682708a
hexea08dfa

245403130 has 32 divisors (see below), whose sum is σ = 521118720. Its totient is φ = 81423360.

The previous prime is 245403101. The next prime is 245403139. The reversal of 245403130 is 31304542.

It is not an unprimeable number, because it can be changed into a prime (245403139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54375 + ... + 58714.

It is an arithmetic number, because the mean of its divisors is an integer number (16284960).

Almost surely, 2245403130 is an apocalyptic number.

245403130 is an abundant number, since it is smaller than the sum of its proper divisors (275715590).

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

245403130 is a wasteful number, since it uses less digits than its factorization.

245403130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113134.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 245403130 is about 15665.3480650766. The cubic root of 245403130 is about 626.0754858667.

Adding to 245403130 its reverse (31304542), we get a palindrome (276707672).

The spelling of 245403130 in words is "two hundred forty-five million, four hundred three thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 31 35 62 70 155 217 310 434 1085 2170 113089 226178 565445 791623 1130890 1583246 3505759 3958115 7011518 7916230 17528795 24540313 35057590 49080626 122701565 245403130