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1231044034 = 21166378431
BaseRepresentation
bin100100101100000…
…0011110111000010
310011210102111221111
41021120003313002
510010121402114
6322053313534
742335462443
oct11130036702
93153374844
101231044034
1158198a670
122a43358aa
1316807372c
14b96d12ca
157311dbc4
hex49603dc2

1231044034 has 16 divisors (see below), whose sum is σ = 2014978176. Its totient is φ = 559414800.

The previous prime is 1231044013. The next prime is 1231044037. The reversal of 1231044034 is 4304401321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 1231043996 and 1231044014.

It is not an unprimeable number, because it can be changed into a prime (1231044037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141799 + ... + 150229.

It is an arithmetic number, because the mean of its divisors is an integer number (125936136).

Almost surely, 21231044034 is an apocalyptic number.

1231044034 is a deficient number, since it is larger than the sum of its proper divisors (783934142).

1231044034 is a wasteful number, since it uses less digits than its factorization.

1231044034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15081.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1231044034 is about 35086.2371023169. The cubic root of 1231044034 is about 1071.7443333129.

Adding to 1231044034 its reverse (4304401321), we get a palindrome (5535445355).

The spelling of 1231044034 in words is "one billion, two hundred thirty-one million, forty-four thousand, thirty-four".

Divisors: 1 2 11 22 6637 8431 13274 16862 73007 92741 146014 185482 55956547 111913094 615522017 1231044034