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1230541432 = 23153817679
BaseRepresentation
bin100100101011000…
…1001001001111000
310011202110222111121
41021112021021320
510010004311212
6322034435024
742331300231
oct11126111170
93152428447
101230541432
11581676a9a
122a4132a74
13167c28a33
14b9600088
157306ed07
hex49589278

1230541432 has 8 divisors (see below), whose sum is σ = 2307265200. Its totient is φ = 615270712.

The previous prime is 1230541397. The next prime is 1230541453. The reversal of 1230541432 is 2341450321.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×12305414322 = 3028464431737221248, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1230541397 and 1230541406.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 76908832 + ... + 76908847.

It is an arithmetic number, because the mean of its divisors is an integer number (288408150).

Almost surely, 21230541432 is an apocalyptic number.

It is an amenable number.

1230541432 is a deficient number, since it is larger than the sum of its proper divisors (1076723768).

1230541432 is a wasteful number, since it uses less digits than its factorization.

1230541432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153817685 (or 153817681 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 1230541432 is about 35079.0739900585. The cubic root of 1230541432 is about 1071.5984587126.

Adding to 1230541432 its reverse (2341450321), we get a palindrome (3571991753).

The spelling of 1230541432 in words is "one billion, two hundred thirty million, five hundred forty-one thousand, four hundred thirty-two".

Divisors: 1 2 4 8 153817679 307635358 615270716 1230541432