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1040143445 = 51137895743
BaseRepresentation
bin111101111111110…
…101010001010101
32200111012202120022
4331333311101111
54112234042240
6251113514525
734530034115
oct7577652125
92614182508
101040143445
11494152190
12250412a45
131376540c3
149c1db045
15614b09b5
hex3dff5455

1040143445 has 32 divisors (see below), whose sum is σ = 1414402560. Its totient is φ = 727626240.

The previous prime is 1040143439. The next prime is 1040143463. The reversal of 1040143445 is 5443410401.

It is a happy number.

It is not a de Polignac number, because 1040143445 - 26 = 1040143381 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 178244 + ... + 183986.

It is an arithmetic number, because the mean of its divisors is an integer number (44200080).

Almost surely, 21040143445 is an apocalyptic number.

It is an amenable number.

1040143445 is a deficient number, since it is larger than the sum of its proper divisors (374259115).

1040143445 is a wasteful number, since it uses less digits than its factorization.

1040143445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1040143445 is about 32251.2549368238. The cubic root of 1040143445 is about 1013.2059826565.

Adding to 1040143445 its reverse (5443410401), we get a palindrome (6483553846).

The spelling of 1040143445 in words is "one billion, forty million, one hundred forty-three thousand, four hundred forty-five".

Divisors: 1 5 11 37 55 89 185 407 445 979 2035 3293 4895 5743 16465 28715 36223 63173 181115 212491 315865 511127 1062455 2337401 2555635 5622397 11687005 18911699 28111985 94558495 208028689 1040143445