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245431004 = 22721396323
BaseRepresentation
bin11101010000011…
…11101011011100
3122002211012001012
432220033223130
51000312243004
640204234352
76040062200
oct1650175334
9562735035
10245431004
111165a2a45
126a23b9b8
133bb02b60
142484ab00
151683046e
hexea0fadc

245431004 has 36 divisors (see below), whose sum is σ = 538065864. Its totient is φ = 97092576.

The previous prime is 245431003. The next prime is 245431009. The reversal of 245431004 is 400134542.

245431004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245431001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45614 + ... + 50709.

It is an arithmetic number, because the mean of its divisors is an integer number (14946274).

Almost surely, 2245431004 is an apocalyptic number.

It is an amenable number.

245431004 is an abundant number, since it is smaller than the sum of its proper divisors (292634860).

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

245431004 is a wasteful number, since it uses less digits than its factorization.

245431004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96354 (or 96345 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 245431004 is about 15666.2377104396. The cubic root of 245431004 is about 626.0991891333.

Adding to 245431004 its reverse (400134542), we get a palindrome (645565546).

The spelling of 245431004 in words is "two hundred forty-five million, four hundred thirty-one thousand, four".

Divisors: 1 2 4 7 13 14 26 28 49 52 91 98 182 196 364 637 1274 2548 96323 192646 385292 674261 1252199 1348522 2504398 2697044 4719827 5008796 8765393 9439654 17530786 18879308 35061572 61357751 122715502 245431004