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23431403030 = 257477122007
BaseRepresentation
bin10101110100100111…
…101101011000010110
32020110222022121021212
4111310213231120112
5340441414344110
614433024141422
71456436432240
oct256447553026
966428277255
1023431403030
119a344639a2
12465b167872
132295577229
1411c3d09090
15922127e05
hex5749ed616

23431403030 has 32 divisors (see below), whose sum is σ = 49227319296. Its totient is φ = 7862694624.

The previous prime is 23431403029. The next prime is 23431403033. The reversal of 23431403030 is 3030413432.

It is a junction number, because it is equal to n+sod(n) for n = 23431402987 and 23431403005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431403033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3557714 + ... + 3564293.

It is an arithmetic number, because the mean of its divisors is an integer number (1538353728).

Almost surely, 223431403030 is an apocalyptic number.

23431403030 is an abundant number, since it is smaller than the sum of its proper divisors (25795916266).

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

23431403030 is a wasteful number, since it uses less digits than its factorization.

23431403030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7122068.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 23431403030 its reverse (3030413432), we get a palindrome (26461816462).

The spelling of 23431403030 in words is "twenty-three billion, four hundred thirty-one million, four hundred three thousand, thirty".

Divisors: 1 2 5 7 10 14 35 47 70 94 235 329 470 658 1645 3290 7122007 14244014 35610035 49854049 71220070 99708098 249270245 334734329 498540490 669468658 1673671645 2343140303 3347343290 4686280606 11715701515 23431403030