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1230232211 = 13234114489
BaseRepresentation
bin100100101010011…
…1101101010010011
310011201220021022222
41021110331222103
510004414412321
6322024051255
742325541555
oct11124755223
93151807288
101230232211
1158148573a
122a4003b2b
13167b4b070
14b955d4d5
157300d3ab
hex4953da93

1230232211 has 8 divisors (see below), whose sum is σ = 1382468640. Its totient is φ = 1086224832.

The previous prime is 1230232163. The next prime is 1230232249. The reversal of 1230232211 is 1122320321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230232211 - 26 = 1230232147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1230232211.

It is not an unprimeable number, because it can be changed into a prime (1230232261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2056946 + ... + 2057543.

It is an arithmetic number, because the mean of its divisors is an integer number (172808580).

Almost surely, 21230232211 is an apocalyptic number.

1230232211 is a deficient number, since it is larger than the sum of its proper divisors (152236429).

1230232211 is a wasteful number, since it uses less digits than its factorization.

1230232211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4114525.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1230232211 is about 35074.6662279201. Note that the first 3 decimals coincide. The cubic root of 1230232211 is about 1071.5086910440.

Adding to 1230232211 its reverse (1122320321), we get a palindrome (2352552532).

The spelling of 1230232211 in words is "one billion, two hundred thirty million, two hundred thirty-two thousand, two hundred eleven".

Divisors: 1 13 23 299 4114489 53488357 94633247 1230232211