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1102505053 = 13552115361
BaseRepresentation
bin100000110110110…
…1110010001011101
32211211120001121111
41001231232101131
54224220130203
6301222302021
736215065306
oct10155562135
92754501544
101102505053
11516376401
12269287911
13147549c70
14a65d17ad
1566bcd26d
hex41b6e45d

1102505053 has 8 divisors (see below), whose sum is σ = 1187605496. Its totient is φ = 1017446400.

The previous prime is 1102505017. The next prime is 1102505081. The reversal of 1102505053 is 3505052011.

It can be written as a sum of positive squares in 4 ways, for example, as 54493924 + 1048011129 = 7382^2 + 32373^2 .

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 1102505053 - 221 = 1100407901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102505003) 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, 64093 + ... + 79453.

It is an arithmetic number, because the mean of its divisors is an integer number (148450687).

Almost surely, 21102505053 is an apocalyptic number.

1102505053 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1102505053 is a deficient number, since it is larger than the sum of its proper divisors (85100443).

1102505053 is a wasteful number, since it uses less digits than its factorization.

1102505053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20895.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 1102505053 is about 33203.9915221047. The cubic root of 1102505053 is about 1033.0631323935.

Adding to 1102505053 its reverse (3505052011), we get a palindrome (4607557064).

The spelling of 1102505053 in words is "one billion, one hundred two million, five hundred five thousand, fifty-three".

Divisors: 1 13 5521 15361 71773 199693 84808081 1102505053