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38652128564 = 2271972654377
BaseRepresentation
bin100011111111110110…
…001010110100110100
310200202201210120111012
4203333312022310310
51113124421103224
625431225131352
72535556446320
oct437766126464
9120681716435
1038652128564
1115435134305
1275a8629b58
13384ca55cba
141c29588980
1510134dc80e
hex8ffd8ad34

38652128564 has 24 divisors (see below), whose sum is σ = 81372903360. Its totient is φ = 15693345216.

The previous prime is 38652128561. The next prime is 38652128597. The reversal of 38652128564 is 46582125683.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38652128561) 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, 36326657 + ... + 36327720.

It is an arithmetic number, because the mean of its divisors is an integer number (3390537640).

Almost surely, 238652128564 is an apocalyptic number.

It is an amenable number.

38652128564 is an abundant number, since it is smaller than the sum of its proper divisors (42720774796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38652128564 is a wasteful number, since it uses less digits than its factorization.

38652128564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72654407 (or 72654405 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 50.

The spelling of 38652128564 in words is "thirty-eight billion, six hundred fifty-two million, one hundred twenty-eight thousand, five hundred sixty-four".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 72654377 145308754 290617508 508580639 1017161278 1380433163 2034322556 2760866326 5521732652 9663032141 19326064282 38652128564