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2064654890974 = 213249371237279
BaseRepresentation
bin11110000010110111000…
…001010111011111011110
321022101020100102121200201
4132002313001113133132
5232311403123002344
64220253411414114
7302111034003334
oct36026701273736
97271210377621
102064654890974
11726684951385
122941888b433a
1311c9084ba200
1471d0364bb54
1538a8e2174d4
hex1e0b70577de

2064654890974 has 24 divisors (see below), whose sum is σ = 3354219063360. Its totient is φ = 952723856448.

The previous prime is 2064654890953. The next prime is 2064654891007. The reversal of 2064654890974 is 4790984564602.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1050067 + ... + 2287345.

It is an arithmetic number, because the mean of its divisors is an integer number (139759127640).

Almost surely, 22064654890974 is an apocalyptic number.

2064654890974 is a deficient number, since it is larger than the sum of its proper divisors (1289564172386).

2064654890974 is a wasteful number, since it uses less digits than its factorization.

2064654890974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242244 (or 1242231 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 64.

The spelling of 2064654890974 in words is "two trillion, sixty-four billion, six hundred fifty-four million, eight hundred ninety thousand, nine hundred seventy-four".

Divisors: 1 2 13 26 169 338 4937 9874 64181 128362 834353 1237279 1668706 2474558 16084627 32169254 209100151 418200302 6108446423 12216892846 79409803499 158819606998 1032327445487 2064654890974