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1105253125 = 55353681
BaseRepresentation
bin100000111100000…
…1101001100000101
32212000201200020221
41001320031030011
54230421100000
6301401224341
736250332214
oct10170151405
92760650227
101105253125
11517983039
1226a1920b1
13147c9ca42
14a6b0907b
156707261a
hex41e0d305

1105253125 has 12 divisors (see below), whose sum is σ = 1381481892. Its totient is φ = 884200000.

The previous prime is 1105253119. The next prime is 1105253131. The reversal of 1105253125 is 5213525011.

It is an interprime number because it is at equal distance from previous prime (1105253119) and next prime (1105253131).

It can be written as a sum of positive squares in 6 ways, for example, as 1102638436 + 2614689 = 33206^2 + 1617^2 .

It is not a de Polignac number, because 1105253125 - 227 = 971035397 is a prime.

It is a super-3 number, since 3×11052531253 (a number of 28 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 1105253125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173716 + ... + 179965.

It is an arithmetic number, because the mean of its divisors is an integer number (115123491).

Almost surely, 21105253125 is an apocalyptic number.

It is an amenable number.

1105253125 is a deficient number, since it is larger than the sum of its proper divisors (276228767).

1105253125 is an frugal number, since it uses more digits than its factorization.

1105253125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353706 (or 353686 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1105253125 is about 33245.3474188495. The cubic root of 1105253125 is about 1033.9207479286.

Adding to 1105253125 its reverse (5213525011), we get a palindrome (6318778136).

The spelling of 1105253125 in words is "one billion, one hundred five million, two hundred fifty-three thousand, one hundred twenty-five".

Divisors: 1 5 25 125 625 3125 353681 1768405 8842025 44210125 221050625 1105253125