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2758142225 = 52137805297
BaseRepresentation
bin1010010001100101…
…1110100100010001
321010012221010211202
42210121132210101
521122041022400
61133404320545
7125230551656
oct24431364421
97105833752
102758142225
111195999093
1264b843155
1334c562c27
141c2449c2d
1511221c4d5
hexa465e911

2758142225 has 12 divisors (see below), whose sum is σ = 3445064844. Its totient is φ = 2190405120.

The previous prime is 2758142173. The next prime is 2758142227. The reversal of 2758142225 is 5222418572.

It can be written as a sum of positive squares in 6 ways, for example, as 7349521 + 2750792704 = 2711^2 + 52448^2 .

It is not a de Polignac number, because 2758142225 - 210 = 2758141201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2758142227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 399224 + ... + 406073.

It is an arithmetic number, because the mean of its divisors is an integer number (287088737).

Almost surely, 22758142225 is an apocalyptic number.

2758142225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2758142225 is a deficient number, since it is larger than the sum of its proper divisors (686922619).

2758142225 is a wasteful number, since it uses less digits than its factorization.

2758142225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805444 (or 805439 counting only the distinct ones).

The product of its digits is 89600, while the sum is 38.

The square root of 2758142225 is about 52518.0180985536. The cubic root of 2758142225 is about 1402.4010201679.

The spelling of 2758142225 in words is "two billion, seven hundred fifty-eight million, one hundred forty-two thousand, two hundred twenty-five".

Divisors: 1 5 25 137 685 3425 805297 4026485 20132425 110325689 551628445 2758142225