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38434213454 = 2713127213093
BaseRepresentation
bin100011110010110110…
…111000111001001110
310200012112202100011012
4203302312320321032
51112203124312304
625353442325222
72530302265310
oct436266707116
9120175670135
1038434213454
111533312547a
127547659812
133816868550
141c086617b0
15eee2e516e
hex8f2db8e4e

38434213454 has 48 divisors (see below), whose sum is σ = 71524037088. Its totient is φ = 15083869248.

The previous prime is 38434213439. The next prime is 38434213471. The reversal of 38434213454 is 45431243483.

It is a super-2 number, since 2×384342134542 (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2928932 + ... + 2942024.

It is an arithmetic number, because the mean of its divisors is an integer number (1490084106).

Almost surely, 238434213454 is an apocalyptic number.

38434213454 is a deficient number, since it is larger than the sum of its proper divisors (33089823634).

38434213454 is a wasteful number, since it uses less digits than its factorization.

38434213454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13369 (or 13242 counting only the distinct ones).

The product of its digits is 552960, while the sum is 41.

The spelling of 38434213454 in words is "thirty-eight billion, four hundred thirty-four million, two hundred thirteen thousand, four hundred fifty-four".

Divisors: 1 2 7 13 14 26 91 127 182 254 889 1651 1778 3302 11557 13093 16129 23114 26186 32258 91651 112903 170209 183302 209677 225806 340418 419354 1191463 1467739 1662811 2382926 2935478 3325622 11639677 21616543 23279354 43233086 151315801 211176997 302631602 422353994 1478238979 2745300961 2956477958 5490601922 19217106727 38434213454