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630242271 = 324397103163
BaseRepresentation
bin100101100100001…
…011101111011111
31121220220121212100
4211210023233133
52242320223041
6142312140143
721421654011
oct4544135737
91556817770
10630242271
112a383438a
12157097653
13a0756c29
145d9ba1b1
153a4e36b6
hex2590bbdf

630242271 has 48 divisors (see below), whose sum is σ = 956091136. Its totient is φ = 399748608.

The previous prime is 630242243. The next prime is 630242279. The reversal of 630242271 is 172242036.

630242271 is a `hidden beast` number, since 630 + 2 + 4 + 2 + 27 + 1 = 666.

It is not a de Polignac number, because 630242271 - 27 = 630242143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630242279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3866436 + ... + 3866598.

Almost surely, 2630242271 is an apocalyptic number.

630242271 is a deficient number, since it is larger than the sum of its proper divisors (325848865).

630242271 is a wasteful number, since it uses less digits than its factorization.

630242271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412 (or 409 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 630242271 is about 25104.6264859687. The cubic root of 630242271 is about 857.3717628757.

The spelling of 630242271 in words is "six hundred thirty million, two hundred forty-two thousand, two hundred seventy-one".

Divisors: 1 3 9 43 97 103 129 163 291 309 387 489 873 927 1467 4171 4429 7009 9991 12513 13287 15811 16789 21027 29973 37539 39861 47433 50367 63081 89919 142299 151101 429613 679873 721927 1288839 1628533 2039619 2165781 3866517 4885599 6118857 6497343 14656797 70026919 210080757 630242271