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38926861286432 = 257173780630743
BaseRepresentation
bin10001101100111010111011…
…01111010011110000100000
312002211101000220002222101012
420312131131233103300200
520100234202442131212
6214442430405200052
711125241624350430
oct1066353557236040
9162741026088335
1038926861286432
1111448875414159
124448353100028
131894a30823422
149880da6662c0
1547789c550922
hex23675dbd3c20

38926861286432 has 24 divisors (see below), whose sum is σ = 87585437894976. Its totient is φ = 16682940551232.

The previous prime is 38926861286431. The next prime is 38926861286513. The reversal of 38926861286432 is 23468216862983.

It is a super-2 number, since 2×389268612864322 (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38926861286431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 86890315148 + ... + 86890315595.

It is an arithmetic number, because the mean of its divisors is an integer number (3649393245624).

Almost surely, 238926861286432 is an apocalyptic number.

38926861286432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38926861286432 is an abundant number, since it is smaller than the sum of its proper divisors (48658576608544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38926861286432 is a wasteful number, since it uses less digits than its factorization.

38926861286432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173780630760 (or 173780630752 counting only the distinct ones).

The product of its digits is 286654464, while the sum is 68.

The spelling of 38926861286432 in words is "thirty-eight trillion, nine hundred twenty-six billion, eight hundred sixty-one million, two hundred eighty-six thousand, four hundred thirty-two".

Divisors: 1 2 4 7 8 14 16 28 32 56 112 224 173780630743 347561261486 695122522972 1216464415201 1390245045944 2432928830402 2780490091888 4865857660804 5560980183776 9731715321608 19463430643216 38926861286432