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38539852725 = 3521183562831
BaseRepresentation
bin100011111001001001…
…110111101110110101
310200110220112100222210
4203321021313232311
51112412200241400
625412134444033
72533024225443
oct437111675665
9120426470883
1038539852725
1115387818860
127576b03619
133832704aaa
141c186bdb93
151008710950
hex8f9277bb5

38539852725 has 48 divisors (see below), whose sum is σ = 70349497344. Its totient is φ = 18460824000.

The previous prime is 38539852721. The next prime is 38539852807. The reversal of 38539852725 is 52725893583.

It is not a de Polignac number, because 38539852725 - 22 = 38539852721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38539852721) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212941 + ... + 349890.

It is an arithmetic number, because the mean of its divisors is an integer number (1465614528).

Almost surely, 238539852725 is an apocalyptic number.

It is an amenable number.

38539852725 is a deficient number, since it is larger than the sum of its proper divisors (31809644619).

38539852725 is a wasteful number, since it uses less digits than its factorization.

38539852725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562938 (or 562933 counting only the distinct ones).

The product of its digits is 18144000, while the sum is 57.

The spelling of 38539852725 in words is "thirty-eight billion, five hundred thirty-nine million, eight hundred fifty-two thousand, seven hundred twenty-five".

Divisors: 1 3 5 11 15 25 33 55 75 83 165 249 275 415 825 913 1245 2075 2739 4565 6225 13695 22825 68475 562831 1688493 2814155 6191141 8442465 14070775 18573423 30955705 42212325 46714973 92867115 140144919 154778525 233574865 464335575 513864703 700724595 1167874325 1541594109 2569323515 3503622975 7707970545 12846617575 38539852725