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38212857152 = 261931425047
BaseRepresentation
bin100011100101101010…
…011110110101000000
310122122010020021101122
4203211222132311000
51111224442412102
625315454051412
72521643632541
oct434552366500
9118563207348
1038212857152
111522a186188
1274a54a9b68
1337aca446a2
141bc70c04c8
15ed9b6d0a2
hex8e5a9ed40

38212857152 has 28 divisors (see below), whose sum is σ = 79819621920. Its totient is φ = 18100826496.

The previous prime is 38212857143. The next prime is 38212857167. The reversal of 38212857152 is 25175821283.

It is a super-2 number, since 2×382128571522 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15711308 + ... + 15713739.

Almost surely, 238212857152 is an apocalyptic number.

38212857152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

38212857152 is an abundant number, since it is smaller than the sum of its proper divisors (41606764768).

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

38212857152 is a wasteful number, since it uses less digits than its factorization.

38212857152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31425078 (or 31425068 counting only the distinct ones).

The product of its digits is 268800, while the sum is 44.

The spelling of 38212857152 in words is "thirty-eight billion, two hundred twelve million, eight hundred fifty-seven thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 19 32 38 64 76 152 304 608 1216 31425047 62850094 125700188 251400376 502800752 597075893 1005601504 1194151786 2011203008 2388303572 4776607144 9553214288 19106428576 38212857152