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1230671232 = 2734731547
BaseRepresentation
bin100100101011010…
…1000110110000000
310011202201120120000
41021112220312000
510010022434412
6322041320000
742332350530
oct11126506600
93152646500
101230671232
1158175556a
122a4196000
13167c72b3b
14b96354c0
15730984dc
hex495a8d80

1230671232 has 320 divisors, whose sum is σ = 4328586240. Its totient is φ = 339655680.

The previous prime is 1230671219. The next prime is 1230671237. The reversal of 1230671232 is 2321760321.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1230671196 and 1230671205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230671237) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2249583 + ... + 2250129.

It is an arithmetic number, because the mean of its divisors is an integer number (13526832).

Almost surely, 21230671232 is an apocalyptic number.

1230671232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230671232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2164293120).

1230671232 is an abundant number, since it is smaller than the sum of its proper divisors (3097915008).

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

1230671232 is an equidigital number, since it uses as much as digits as its factorization.

1230671232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611 (or 590 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1230671232 is about 35080.9240471228. The cubic root of 1230671232 is about 1071.6361355125.

It can be divided in two parts, 12306 and 71232, that added together give a palindrome (83538).

The spelling of 1230671232 in words is "one billion, two hundred thirty million, six hundred seventy-one thousand, two hundred thirty-two".