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1230189753 = 313231371449
BaseRepresentation
bin100100101010011…
…0011010010111001
310011201211010002110
41021110303102321
510004412033003
6322023122533
742325304022
oct11124632271
93151733073
101230189753
11581456851
122a3ba3449
13167b34940
14b954bc49
1573000a03
hex495334b9

1230189753 has 16 divisors (see below), whose sum is σ = 1843228800. Its totient is φ = 724124544.

The previous prime is 1230189739. The next prime is 1230189757. The reversal of 1230189753 is 3579810321.

It is not a de Polignac number, because 1230189753 - 25 = 1230189721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1230189757) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684828 + ... + 686621.

It is an arithmetic number, because the mean of its divisors is an integer number (115201800).

Almost surely, 21230189753 is an apocalyptic number.

1230189753 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1230189753 is a deficient number, since it is larger than the sum of its proper divisors (613039047).

1230189753 is a wasteful number, since it uses less digits than its factorization.

1230189753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371488.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 1230189753 is about 35074.0609710367. The cubic root of 1230189753 is about 1071.4963642006.

The spelling of 1230189753 in words is "one billion, two hundred thirty million, one hundred eighty-nine thousand, seven hundred fifty-three".

Divisors: 1 3 13 23 39 69 299 897 1371449 4114347 17828837 31543327 53486511 94629981 410063251 1230189753