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123431442230 = 2583148712581
BaseRepresentation
bin111001011110100010…
…1100101011100110110
3102210121011000221022102
41302331011211130312
54010241422122410
6132411552102102
711626513643105
oct1627505453466
9383534027272
10123431442230
114838a916498
121bb08b34932
13b84109b765
145d8cd7a03c
15332636e2a5
hex1cbd165736

123431442230 has 16 divisors (see below), whose sum is σ = 224853423984. Its totient is φ = 48777726240.

The previous prime is 123431442229. The next prime is 123431442247. The reversal of 123431442230 is 32244134321.

123431442230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 123431442193 and 123431442202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74355461 + ... + 74357120.

It is an arithmetic number, because the mean of its divisors is an integer number (14053338999).

Almost surely, 2123431442230 is an apocalyptic number.

123431442230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123431442230 is a deficient number, since it is larger than the sum of its proper divisors (101421981754).

123431442230 is a wasteful number, since it uses less digits than its factorization.

123431442230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148712671.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 123431442230 its reverse (32244134321), we get a palindrome (155675576551).

The spelling of 123431442230 in words is "one hundred twenty-three billion, four hundred thirty-one million, four hundred forty-two thousand, two hundred thirty".

Divisors: 1 2 5 10 83 166 415 830 148712581 297425162 743562905 1487125810 12343144223 24686288446 61715721115 123431442230