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1021104433 = 25711173557
BaseRepresentation
bin111100110111001…
…101000100110001
32122011101110221201
4330313031010301
54042400320213
6245153451201
734206146566
oct7467150461
92564343851
101021104433
11484428968
12245b70b01
1313371920b
149988286d
155e99e6dd
hex3cdcd131

1021104433 has 8 divisors (see below), whose sum is σ = 1026283752. Its totient is φ = 1015934976.

The previous prime is 1021104401. The next prime is 1021104449. The reversal of 1021104433 is 3344011201.

It can be written as a sum of positive squares in 4 ways, for example, as 49660209 + 971444224 = 7047^2 + 31168^2 .

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 1021104433 - 25 = 1021104401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021104433.

It is not an unprimeable number, because it can be changed into a prime (1021104493) 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, 285291 + ... + 288847.

It is an arithmetic number, because the mean of its divisors is an integer number (128285469).

Almost surely, 21021104433 is an apocalyptic number.

It is an amenable number.

1021104433 is a deficient number, since it is larger than the sum of its proper divisors (5179319).

1021104433 is a wasteful number, since it uses less digits than its factorization.

1021104433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4931.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1021104433 is about 31954.7247367271. The cubic root of 1021104433 is about 1006.9858946326.

Adding to 1021104433 its reverse (3344011201), we get a palindrome (4365115634).

The spelling of 1021104433 in words is "one billion, twenty-one million, one hundred four thousand, four hundred thirty-three".

Divisors: 1 257 1117 3557 287069 914149 3973169 1021104433