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1235104031 = 71223144271
BaseRepresentation
bin100100110011110…
…0011000100011111
310012002001210012202
41021213203010133
510012141312111
6322320322115
742415132250
oct11147430437
93162053182
101235104031
11584202a37
122a577333b
13168b656b5
14ba06ab27
1573671b3b
hex499e311f

1235104031 has 8 divisors (see below), whose sum is σ = 1412711424. Its totient is φ = 1057787640.

The previous prime is 1235103971. The next prime is 1235104097. The reversal of 1235104031 is 1304015321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1235104031 - 218 = 1234841887 is a prime.

It is a super-2 number, since 2×12351040312 = 3050963934784897922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1235103994 and 1235104012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235104231) 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, 63575 + ... + 80696.

It is an arithmetic number, because the mean of its divisors is an integer number (176588928).

Almost surely, 21235104031 is an apocalyptic number.

1235104031 is a deficient number, since it is larger than the sum of its proper divisors (177607393).

1235104031 is a wasteful number, since it uses less digits than its factorization.

1235104031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145501.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1235104031 is about 35144.0468785255. The cubic root of 1235104031 is about 1072.9212487010.

Adding to 1235104031 its reverse (1304015321), we get a palindrome (2539119352).

The spelling of 1235104031 in words is "one billion, two hundred thirty-five million, one hundred four thousand, thirty-one".

Divisors: 1 7 1223 8561 144271 1009897 176443433 1235104031