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378061392 = 243192571613
BaseRepresentation
bin10110100010001…
…100001001010000
3222100101111201210
4112202030021100
51233240431032
6101303100120
712240316542
oct2642141120
9870344653
10378061392
11184451135
12a6741640
136042c987
14382d3692
15232cd2cc
hex1688c250

378061392 has 80 divisors (see below), whose sum is σ = 1032701760. Its totient is φ = 118849536.

The previous prime is 378061391. The next prime is 378061417. The reversal of 378061392 is 293160873.

It is a super-2 number, since 2×3780613922 = 285860832241955328, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 378061392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378061391) 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, 233578 + ... + 235190.

It is an arithmetic number, because the mean of its divisors is an integer number (12908772).

Almost surely, 2378061392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 378061392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (516350880).

378061392 is an abundant number, since it is smaller than the sum of its proper divisors (654640368).

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

378061392 is a wasteful number, since it uses less digits than its factorization.

378061392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 378061392 is about 19443.8008630000. The cubic root of 378061392 is about 723.0818209045.

The spelling of 378061392 in words is "three hundred seventy-eight million, sixty-one thousand, three hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 19 24 38 48 57 76 114 152 228 257 304 456 514 771 912 1028 1542 1613 2056 3084 3226 4112 4839 4883 6168 6452 9678 9766 12336 12904 14649 19356 19532 25808 29298 30647 38712 39064 58596 61294 77424 78128 91941 117192 122588 183882 234384 245176 367764 414541 490352 735528 829082 1243623 1471056 1658164 2487246 3316328 4974492 6632656 7876279 9948984 15752558 19897968 23628837 31505116 47257674 63010232 94515348 126020464 189030696 378061392