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1230455253 = 3478726633
BaseRepresentation
bin100100101010111…
…0100000111010101
310011202022121021210
41021111310013111
510004444032003
6322032532033
742330461046
oct11125640725
93152277253
101230455253
11581618275
122a40b1019
13167bc8741
14b95ba8cd
1573054503
hex495741d5

1230455253 has 8 divisors (see below), whose sum is σ = 1675513728. Its totient is φ = 802850144.

The previous prime is 1230455251. The next prime is 1230455263. The reversal of 1230455253 is 3525540321.

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 1230455253 - 21 = 1230455251 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1230455253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230455251) 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, 4363176 + ... + 4363457.

It is an arithmetic number, because the mean of its divisors is an integer number (209439216).

Almost surely, 21230455253 is an apocalyptic number.

It is an amenable number.

1230455253 is a deficient number, since it is larger than the sum of its proper divisors (445058475).

1230455253 is an equidigital number, since it uses as much as digits as its factorization.

1230455253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8726683.

The product of its (nonzero) digits is 18000, while the sum is 30.

The square root of 1230455253 is about 35077.8456151458. The cubic root of 1230455253 is about 1071.5734422342.

Adding to 1230455253 its reverse (3525540321), we get a palindrome (4755995574).

It can be divided in two parts, 12304552 and 53, that multiplied together give a palindrome (652141256).

The spelling of 1230455253 in words is "one billion, two hundred thirty million, four hundred fifty-five thousand, two hundred fifty-three".

Divisors: 1 3 47 141 8726633 26179899 410151751 1230455253