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378229212 = 223271147977
BaseRepresentation
bin10110100010110…
…101000111011100
3222100201000221100
4112202311013130
51233311313322
6101310433100
712241616034
oct2642650734
9870630840
10378229212
11184556229
12a6802790
136048b18a
14383388c4
1523312dac
hex168b51dc

378229212 has 36 divisors (see below), whose sum is σ = 969551856. Its totient is φ = 124299840.

The previous prime is 378229183. The next prime is 378229249. The reversal of 378229212 is 212922873.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71433 + ... + 76544.

It is an arithmetic number, because the mean of its divisors is an integer number (26931996).

Almost surely, 2378229212 is an apocalyptic number.

It is an amenable number.

378229212 is an abundant number, since it is smaller than the sum of its proper divisors (591322644).

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

378229212 is a wasteful number, since it uses less digits than its factorization.

378229212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148058 (or 148053 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 378229212 is about 19448.1158984617. The cubic root of 378229212 is about 723.1887961585.

The spelling of 378229212 in words is "three hundred seventy-eight million, two hundred twenty-nine thousand, two hundred twelve".

Divisors: 1 2 3 4 6 9 12 18 36 71 142 213 284 426 639 852 1278 2556 147977 295954 443931 591908 887862 1331793 1775724 2663586 5327172 10506367 21012734 31519101 42025468 63038202 94557303 126076404 189114606 378229212