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2755515049 = 7274992
BaseRepresentation
bin1010010000111101…
…1101001010101001
321010000222200000221
42210033131022221
521120402440144
61133232130041
7125166330400
oct24417351251
97100880027
102755515049
111194464271
1264a996921
1334bb531a1
141c1d64637
15111d9dd84
hexa43dd2a9

2755515049 has 9 divisors (see below), whose sum is σ = 3205822557. Its totient is φ = 2361555084.

The previous prime is 2755515017. The next prime is 2755515067. The reversal of 2755515049 is 9405155572.

The square root of 2755515049 is 52493.

It is a perfect power (a square), and thus also a powerful number.

2755515049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2755515049 - 25 = 2755515017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2755514996 and 2755515014.

It is not an unprimeable number, because it can be changed into a prime (2755515079) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 363702 + ... + 371200.

Almost surely, 22755515049 is an apocalyptic number.

2755515049 is the 52493-rd square number.

2755515049 is the 26247-th centered octagonal number.

It is an amenable number.

2755515049 is a deficient number, since it is larger than the sum of its proper divisors (450307508).

2755515049 is an frugal number, since it uses more digits than its factorization.

2755515049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15012 (or 7506 counting only the distinct ones).

The product of its (nonzero) digits is 315000, while the sum is 43.

The cubic root of 2755515049 is about 1401.9556086767.

The spelling of 2755515049 in words is "two billion, seven hundred fifty-five million, five hundred fifteen thousand, forty-nine".

Divisors: 1 7 49 7499 52493 367451 56235001 393645007 2755515049