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2000684647 = 132371731291
BaseRepresentation
bin111011101000000…
…0000011001100111
312011102122022101101
41313100000121213
513044133402042
6530305340531
7100402352563
oct16720003147
95142568341
102000684647
11937374a95
1247a037747
1325b656b90
1414d9d66a3
15ba99a6b7
hex77400667

2000684647 has 32 divisors (see below), whose sum is σ = 2312948736. Its totient is φ = 1716422400.

The previous prime is 2000684641. The next prime is 2000684663. The reversal of 2000684647 is 7464860002.

It is a cyclic number.

It is not a de Polignac number, because 2000684647 - 215 = 2000651879 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 (2000684641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1549072 + ... + 1550362.

It is an arithmetic number, because the mean of its divisors is an integer number (72279648).

Almost surely, 22000684647 is an apocalyptic number.

2000684647 is a deficient number, since it is larger than the sum of its proper divisors (312264089).

2000684647 is a wasteful number, since it uses less digits than its factorization.

2000684647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 2000684647 is about 44729.0134811847. The cubic root of 2000684647 is about 1260.0648003542.

It can be divided in two parts, 20006 and 84647, that added together give a triangular number (104653 = T457).

The spelling of 2000684647 in words is "two billion, six hundred eighty-four thousand, six hundred forty-seven".

Divisors: 1 13 23 71 73 299 923 949 1291 1633 1679 5183 16783 21229 21827 29693 67379 91661 94243 119209 386009 1191593 1225159 1549717 2108203 2167589 6691253 27406639 28178657 86986289 153898819 2000684647