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1142415553 = 3493273397
BaseRepresentation
bin100010000010111…
…1110000011000001
32221121122201112011
41010011332003001
54314424244203
6305205532521
740211241406
oct10405760301
92847581464
101142415553
11536955794
1227a714141
131528b1b46
14aba202ad
156a46376d
hex4417e0c1

1142415553 has 4 divisors (see below), whose sum is σ = 1145689300. Its totient is φ = 1139141808.

The previous prime is 1142415551. The next prime is 1142415559. The reversal of 1142415553 is 3555142411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3555142411 = 19318420427.

It can be written as a sum of positive squares in 2 ways, for example, as 330621489 + 811794064 = 18183^2 + 28492^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142415553 - 21 = 1142415551 is a prime.

It is a super-2 number, since 2×11424155532 = 2610226591472591618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142415551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636350 + ... + 1637047.

It is an arithmetic number, because the mean of its divisors is an integer number (286422325).

Almost surely, 21142415553 is an apocalyptic number.

It is an amenable number.

1142415553 is a deficient number, since it is larger than the sum of its proper divisors (3273747).

1142415553 is an equidigital number, since it uses as much as digits as its factorization.

1142415553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273746.

The product of its digits is 12000, while the sum is 31.

The square root of 1142415553 is about 33799.6383560535. The cubic root of 1142415553 is about 1045.3812404448.

Adding to 1142415553 its reverse (3555142411), we get a palindrome (4697557964).

The spelling of 1142415553 in words is "one billion, one hundred forty-two million, four hundred fifteen thousand, five hundred fifty-three".

Divisors: 1 349 3273397 1142415553