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2744144465 = 51915728649
BaseRepresentation
bin1010001110010000…
…0101001001010001
321002020120222112012
42203210011021101
521110000110330
61132144312305
7125000562116
oct24344051121
97066528465
102744144465
111188aa8397
12647012695
133496a182a
141c064490d
15110da4c95
hexa3905251

2744144465 has 8 divisors (see below), whose sum is σ = 3293260200. Its totient is φ = 2195124352.

The previous prime is 2744144461. The next prime is 2744144509. The reversal of 2744144465 is 5644414472.

It can be written as a sum of positive squares in 4 ways, for example, as 61009 + 2744083456 = 247^2 + 52384^2 .

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 2744144465 - 22 = 2744144461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2744144461) 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, 81461 + ... + 110109.

It is an arithmetic number, because the mean of its divisors is an integer number (411657525).

Almost surely, 22744144465 is an apocalyptic number.

It is an amenable number.

2744144465 is a deficient number, since it is larger than the sum of its proper divisors (549115735).

2744144465 is a wasteful number, since it uses less digits than its factorization.

2744144465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47811.

The product of its digits is 430080, while the sum is 41.

The square root of 2744144465 is about 52384.5823215190. The cubic root of 2744144465 is about 1400.0245684464.

The spelling of 2744144465 in words is "two billion, seven hundred forty-four million, one hundred forty-four thousand, four hundred sixty-five".

Divisors: 1 5 19157 28649 95785 143245 548828893 2744144465