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103225555 = 520645111
BaseRepresentation
bin1100010011100…
…01100011010011
321012020101211201
412021301203103
5202411204210
614124252031
72362255066
oct611614323
9235211751
10103225555
11532a4984
122a6a1017
1318502a14
14d9d08dd
1590e053a
hex62718d3

103225555 has 4 divisors (see below), whose sum is σ = 123870672. Its totient is φ = 82580440.

The previous prime is 103225543. The next prime is 103225579. The reversal of 103225555 is 555522301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 555522301 = 1016954629.

It is not a de Polignac number, because 103225555 - 27 = 103225427 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10322551 + ... + 10322560.

It is an arithmetic number, because the mean of its divisors is an integer number (30967668).

Almost surely, 2103225555 is an apocalyptic number.

103225555 is a deficient number, since it is larger than the sum of its proper divisors (20645117).

103225555 is an equidigital number, since it uses as much as digits as its factorization.

103225555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20645116.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 103225555 is about 10159.9977854328. The cubic root of 103225555 is about 469.0967335623.

Adding to 103225555 its reverse (555522301), we get a palindrome (658747856).

The spelling of 103225555 in words is "one hundred three million, two hundred twenty-five thousand, five hundred fifty-five".

Divisors: 1 5 20645111 103225555