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30303000123 = 31117311742453
BaseRepresentation
bin11100001110001100…
…110001011000111011
32220012212102220101220
4130032030301120323
5444030032000443
621530534243123
72121636152064
oct341614613073
986185386356
1030303000123
1111940287560
125a584b64a3
132b1c0a3606
14167679d56b
15bc552ba83
hex70e33163b

30303000123 has 32 divisors (see below), whose sum is σ = 48175368192. Its totient is φ = 16727539200.

The previous prime is 30303000113. The next prime is 30303000127. The reversal of 30303000123 is 32100030303.

It is not a de Polignac number, because 30303000123 - 212 = 30302996027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30303000127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 853836 + ... + 888617.

It is an arithmetic number, because the mean of its divisors is an integer number (1505480256).

Almost surely, 230303000123 is an apocalyptic number.

30303000123 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

30303000123 is a deficient number, since it is larger than the sum of its proper divisors (17872368069).

30303000123 is a wasteful number, since it uses less digits than its factorization.

30303000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1742515.

The product of its (nonzero) digits is 162, while the sum is 15.

Adding to 30303000123 its reverse (32100030303), we get a palindrome (62403030426).

The spelling of 30303000123 in words is "thirty billion, three hundred three million, one hundred twenty-three", and thus it is an aban number.

Divisors: 1 3 11 17 31 33 51 93 187 341 527 561 1023 1581 5797 17391 1742453 5227359 19166983 29621701 54016043 57500949 88865103 162048129 325838711 594176473 918272731 977516133 1782529419 2754818193 10101000041 30303000123