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38828879145145 = 5374191207341491
BaseRepresentation
bin10001101010000100011011…
…00011000110100010111001
312002111000010100102110220101
420311002031203012202321
520042133021030121040
6214325424003555401
711115202552034065
oct1065021543064271
9162430110373811
1038828879145145
1111410265013191
12443136908bb61
1318887170a192b
149834835ccaa5
1547506555509a
hex23508d8c68b9

38828879145145 has 32 divisors (see below), whose sum is σ = 47973309310080. Its totient is φ = 30148203317760.

The previous prime is 38828879145131. The next prime is 38828879145149. The reversal of 38828879145145 is 54154197882883.

It is not a de Polignac number, because 38828879145145 - 25 = 38828879145113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38828879145149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 935817850 + ... + 935859340.

It is an arithmetic number, because the mean of its divisors is an integer number (1499165915940).

Almost surely, 238828879145145 is an apocalyptic number.

It is an amenable number.

38828879145145 is a deficient number, since it is larger than the sum of its proper divisors (9144430164935).

38828879145145 is a wasteful number, since it uses less digits than its factorization.

38828879145145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54025.

The product of its digits is 619315200, while the sum is 73.

The spelling of 38828879145145 in words is "thirty-eight trillion, eight hundred twenty-eight billion, eight hundred seventy-nine million, one hundred forty-five thousand, one hundred forty-five".

Divisors: 1 5 37 185 419 2095 12073 15503 41491 60365 77515 207455 446701 1535167 2233505 5058587 7675835 17384729 25292935 86923645 187167719 500920843 643234973 935838595 2504604215 3216174865 18534071191 92670355955 209885833217 1049429166085 7765775829029 38828879145145