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4652649 = 327192
BaseRepresentation
bin10001101111111001101001
322202101020100
4101233321221
52142341044
6243420013
754355401
oct21577151
98671210
104652649
112698671
121684609
13c6b961
14891801
1561d869
hex46fe69

4652649 has 9 divisors (see below), whose sum is σ = 6729853. Its totient is φ = 3097452.

The previous prime is 4652623. The next prime is 4652677. The reversal of 4652649 is 9462564.

The square root of 4652649 is 2157.

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

4652649 is a `hidden beast` number, since 4 + 6 + 5 + 2 + 649 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 4652649 - 25 = 4652617 is a prime.

It is a Duffinian number.

It is a Curzon number.

4652649 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4652689) 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, 6112 + ... + 6830.

Almost surely, 24652649 is an apocalyptic number.

4652649 is the 2157-th square number.

4652649 is the 1079-th centered octagonal number.

It is an amenable number.

4652649 is a deficient number, since it is larger than the sum of its proper divisors (2077204).

4652649 is an frugal number, since it uses more digits than its factorization.

4652649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444 (or 722 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The cubic root of 4652649 is about 166.9424425454.

Multiplying 4652649 by its sum of digits (36), we get a square (167495364 = 129422).

It can be divided in two parts, 4 and 652649, that added together give a triangular number (652653 = T1142).

The spelling of 4652649 in words is "four million, six hundred fifty-two thousand, six hundred forty-nine".

Divisors: 1 3 9 719 2157 6471 516961 1550883 4652649