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38748857664285 = 3352910396092593
BaseRepresentation
bin10001100111101111010111…
…11001011000001100011101
312002012100120111220001201000
420303313223321120030131
520034330130030224120
6214224551321540513
711106340546465056
oct1063675371301435
9162170514801630
1038748857664285
111138a330a7522a
124419956044739
131881003688662
1497d651a6172d
15472e30241990
hex233debe5831d

38748857664285 has 64 divisors (see below), whose sum is σ = 71954134387200. Its totient is φ = 19759711878144.

The previous prime is 38748857664271. The next prime is 38748857664287. The reversal of 38748857664285 is 58246675884783.

38748857664285 is a `hidden beast` number, since 3 + 8 + 7 + 4 + 88 + 57 + 66 + 428 + 5 = 666.

It is not a de Polignac number, because 38748857664285 - 212 = 38748857660189 is a prime.

It is a super-2 number, since 2×387488576642852 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38748857664287) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47643052 + ... + 48449541.

It is an arithmetic number, because the mean of its divisors is an integer number (1124283349800).

Almost surely, 238748857664285 is an apocalyptic number.

It is an amenable number.

38748857664285 is a deficient number, since it is larger than the sum of its proper divisors (33205276722915).

38748857664285 is a wasteful number, since it uses less digits than its factorization.

38748857664285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96092739 (or 96092733 counting only the distinct ones).

The product of its digits is 17340825600, while the sum is 81.

The spelling of 38748857664285 in words is "thirty-eight trillion, seven hundred forty-eight billion, eight hundred fifty-seven million, six hundred sixty-four thousand, two hundred eighty-five".

Divisors: 1 3 5 9 15 27 29 45 87 103 135 145 261 309 435 515 783 927 1305 1545 2781 2987 3915 4635 8961 13905 14935 26883 44805 80649 134415 403245 96092593 288277779 480462965 864833337 1441388895 2594500011 2786685197 4324166685 8360055591 9897537079 12972500055 13933425985 25080166773 29692611237 41800277955 49487685395 75240500319 89077833711 125400833865 148463056185 267233501133 287028575291 376202501595 445389168555 861085725873 1336167505665 1435142876455 2583257177619 4305428629365 7749771532857 12916285888095 38748857664285