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378026145 = 32571200083
BaseRepresentation
bin10110100010000…
…011100010100001
3222100022201101100
4112202003202201
51233233314040
6101302225013
712240112020
oct2642034241
9870281340
10378026145
11184427702
12a6725169
1360419913
14382c48b7
15232c2b30
hex168838a1

378026145 has 24 divisors (see below), whose sum is σ = 748852416. Its totient is φ = 172811808.

The previous prime is 378026141. The next prime is 378026189. The reversal of 378026145 is 541620873.

378026145 is a `hidden beast` number, since 37 + 8 + 0 + 2 + 614 + 5 = 666.

It is not a de Polignac number, because 378026145 - 22 = 378026141 is a prime.

It is a super-2 number, since 2×3780261452 = 285807532607122050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378026141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 599727 + ... + 600356.

It is an arithmetic number, because the mean of its divisors is an integer number (31202184).

Almost surely, 2378026145 is an apocalyptic number.

378026145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

378026145 is a deficient number, since it is larger than the sum of its proper divisors (370826271).

378026145 is a wasteful number, since it uses less digits than its factorization.

378026145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200101 (or 1200098 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 378026145 is about 19442.8944604449. The cubic root of 378026145 is about 723.0593490189.

The spelling of 378026145 in words is "three hundred seventy-eight million, twenty-six thousand, one hundred forty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 1200083 3600249 6000415 8400581 10800747 18001245 25201743 42002905 54003735 75605229 126008715 378026145