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1115454023 = 23178927109
BaseRepresentation
bin100001001111100…
…0111101001000111
32212201220221020222
41002133013221013
54241024012043
6302404014555
736433126355
oct10237075107
92781827228
101115454023
11522710132
1227169145b
1314a131b88
14a82027d5
1567dd9d68
hex427c7a47

1115454023 has 8 divisors (see below), whose sum is σ = 1164645600. Its totient is φ = 1066320288.

The previous prime is 1115454017. The next prime is 1115454029. The reversal of 1115454023 is 3204545111.

It is an interprime number because it is at equal distance from previous prime (1115454017) and next prime (1115454029).

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 1115454023 - 26 = 1115453959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1115453983 and 1115454001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115454029) 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, 27593 + ... + 54701.

It is an arithmetic number, because the mean of its divisors is an integer number (145580700).

Almost surely, 21115454023 is an apocalyptic number.

1115454023 is a deficient number, since it is larger than the sum of its proper divisors (49191577).

1115454023 is a wasteful number, since it uses less digits than its factorization.

1115454023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28921.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1115454023 is about 33398.4134802838. The cubic root of 1115454023 is about 1037.0918580038.

Adding to 1115454023 its reverse (3204545111), we get a palindrome (4319999134).

The spelling of 1115454023 in words is "one billion, one hundred fifteen million, four hundred fifty-four thousand, twenty-three".

Divisors: 1 23 1789 27109 41147 623507 48498001 1115454023