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381069168 = 24319417839
BaseRepresentation
bin10110101101101…
…010011101110000
3222120001022121220
4112231222131300
51240023203133
6101451345040
712305014554
oct2655523560
9876038556
10381069168
111861159a7
12a7752180
1360c43a1c
1438877864
15236c45b3
hex16b6a770

381069168 has 40 divisors (see below), whose sum is σ = 1036243200. Its totient is φ = 120337344.

The previous prime is 381069167. The next prime is 381069209. The reversal of 381069168 is 861960183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381069163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208008 + ... + 209831.

It is an arithmetic number, because the mean of its divisors is an integer number (25906080).

Almost surely, 2381069168 is an apocalyptic number.

381069168 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

381069168 is an abundant number, since it is smaller than the sum of its proper divisors (655174032).

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

381069168 is a wasteful number, since it uses less digits than its factorization.

381069168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417869 (or 417863 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 381069168 is about 19520.9930075291. The cubic root of 381069168 is about 724.9943197335.

It can be divided in two parts, 38106 and 9168, that added together give a palindrome (47274).

The spelling of 381069168 in words is "three hundred eighty-one million, sixty-nine thousand, one hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 304 456 912 417839 835678 1253517 1671356 2507034 3342712 5014068 6685424 7938941 10028136 15877882 20056272 23816823 31755764 47633646 63511528 95267292 127023056 190534584 381069168