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38307454377 = 3731229142327
BaseRepresentation
bin100011101011010011…
…010101110110101001
310122212201020022101120
4203223103111312221
51111423202020002
625333113405453
72524202663313
oct435323256651
9118781208346
1038307454377
1115278617505
127511109889
1337c6515c8a
141bd58a67b3
15ee3106cbc
hex8eb4d5da9

38307454377 has 16 divisors (see below), whose sum is σ = 51818778240. Its totient is φ = 25167791232.

The previous prime is 38307454357. The next prime is 38307454379. The reversal of 38307454377 is 77345470383.

It is not a de Polignac number, because 38307454377 - 28 = 38307454121 is a prime.

It is a super-2 number, since 2×383074543772 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38307454379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197988 + ... + 340314.

It is an arithmetic number, because the mean of its divisors is an integer number (3238673640).

Almost surely, 238307454377 is an apocalyptic number.

It is an amenable number.

38307454377 is a deficient number, since it is larger than the sum of its proper divisors (13511323863).

38307454377 is a wasteful number, since it uses less digits than its factorization.

38307454377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143632.

The product of its (nonzero) digits is 5927040, while the sum is 51.

The spelling of 38307454377 in words is "thirty-eight billion, three hundred seven million, four hundred fifty-four thousand, three hundred seventy-seven".

Divisors: 1 3 73 219 1229 3687 89717 142327 269151 426981 10389871 31169613 174919883 524759649 12769151459 38307454377