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378443494 = 2111317277281
BaseRepresentation
bin10110100011101…
…001011011100110
3222101002220212201
4112203221123212
51233340142434
6101315205114
712243500542
oct2643513346
9871086781
10378443494
11184692220
12a68a679a
1360534880
1438392a22
1523356614
hex168e96e6

378443494 has 64 divisors (see below), whose sum is σ = 711208512. Its totient is φ = 148377600.

The previous prime is 378443453. The next prime is 378443497. The reversal of 378443494 is 494344873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378443497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1346634 + ... + 1346914.

It is an arithmetic number, because the mean of its divisors is an integer number (11112633).

Almost surely, 2378443494 is an apocalyptic number.

378443494 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

378443494 is a deficient number, since it is larger than the sum of its proper divisors (332765018).

378443494 is a wasteful number, since it uses less digits than its factorization.

378443494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601.

The product of its digits is 1161216, while the sum is 46.

The square root of 378443494 is about 19453.6241867679. The cubic root of 378443494 is about 723.3253421832.

It can be divided in two parts, 3784 and 43494, that added together give a triangular number (47278 = T307).

The spelling of 378443494 in words is "three hundred seventy-eight million, four hundred forty-three thousand, four hundred ninety-four".

Divisors: 1 2 11 13 17 22 26 34 143 187 221 277 281 286 374 442 554 562 2431 3047 3091 3601 3653 4709 4777 4862 6094 6182 7202 7306 9418 9554 39611 40183 51799 52547 61217 62101 77837 79222 80366 103598 105094 122434 124202 155674 673387 683111 856207 1011881 1323229 1346774 1366222 1712414 2023762 2646458 11130691 14555519 17201977 22261382 29111038 34403954 189221747 378443494