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378387444 = 223234331883
BaseRepresentation
bin10110100011011…
…011101111110100
3222101000001222210
4112203123233310
51233331344234
6101314053420
712243145251
oct2643335764
9871001883
10378387444
111846540a6
12a687a270
13605151c6
143837a428
1523344be9
hex168dbbf4

378387444 has 48 divisors (see below), whose sum is σ = 942746112. Its totient is φ = 117835872.

The previous prime is 378387439. The next prime is 378387509. The reversal of 378387444 is 444783873.

It is a junction number, because it is equal to n+sod(n) for n = 378387393 and 378387402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4074 + ... + 27809.

It is an arithmetic number, because the mean of its divisors is an integer number (19640544).

Almost surely, 2378387444 is an apocalyptic number.

It is an amenable number.

378387444 is an abundant number, since it is smaller than the sum of its proper divisors (564358668).

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

378387444 is a wasteful number, since it uses less digits than its factorization.

378387444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31956 (or 31954 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 48.

The square root of 378387444 is about 19452.1835278202. The cubic root of 378387444 is about 723.2896306545.

The spelling of 378387444 in words is "three hundred seventy-eight million, three hundred eighty-seven thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 23 43 46 69 86 92 129 138 172 258 276 516 989 1978 2967 3956 5934 11868 31883 63766 95649 127532 191298 382596 733309 1370969 1466618 2199927 2741938 2933236 4112907 4399854 5483876 8225814 8799708 16451628 31532287 63064574 94596861 126129148 189193722 378387444