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82091000230 = 2532032562941
BaseRepresentation
bin100110001110100000…
…0010100000110100110
321211220001200220001221
41030131000110012212
52321110244001410
6101413451010554
75634201663121
oct1143500240646
9254801626057
1082091000230
11318a6258548
1213ab0139a5a
1379833c1465
143d8a7613b8
152206d594da
hex131d0141a6

82091000230 has 16 divisors (see below), whose sum is σ = 147809991024. Its totient is φ = 32826135520.

The previous prime is 82091000219. The next prime is 82091000231. The reversal of 82091000230 is 3200019028.

It is a junction number, because it is equal to n+sod(n) for n = 82091000195 and 82091000204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82091000231) 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, 1249441 + ... + 1313500.

It is an arithmetic number, because the mean of its divisors is an integer number (9238124439).

Almost surely, 282091000230 is an apocalyptic number.

82091000230 is a deficient number, since it is larger than the sum of its proper divisors (65718990794).

82091000230 is a wasteful number, since it uses less digits than its factorization.

82091000230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2566151.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 82091000230 its reverse (3200019028), we get a palindrome (85291019258).

The spelling of 82091000230 in words is "eighty-two billion, ninety-one million, two hundred thirty", and thus it is an aban number.

Divisors: 1 2 5 10 3203 6406 16015 32030 2562941 5125882 12814705 25629410 8209100023 16418200046 41045500115 82091000230