Search a number
-
+
378031404 = 223234353601
BaseRepresentation
bin10110100010000…
…100110100101100
3222100022222121010
4112202010310230
51233234001104
6101302305220
712240133242
oct2642046454
9870288533
10378031404
11184430653
12a6728210
136041c12a
14382c6792
15232c4489
hex16884d2c

378031404 has 96 divisors (see below), whose sum is σ = 961196544. Its totient is φ = 115315200.

The previous prime is 378031403. The next prime is 378031441. The reversal of 378031404 is 404130873.

It is a super-2 number, since 2×3780314042 = 285815484820422432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (378031403) 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, 628704 + ... + 629304.

It is an arithmetic number, because the mean of its divisors is an integer number (10012464).

Almost surely, 2378031404 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 378031404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480598272).

378031404 is an abundant number, since it is smaller than the sum of its proper divisors (583165140).

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

378031404 is a wasteful number, since it uses less digits than its factorization.

378031404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 378031404 is about 19443.0297021838. The cubic root of 378031404 is about 723.0627020070.

The spelling of 378031404 in words is "three hundred seventy-eight million, thirty-one thousand, four hundred four".

Divisors: 1 2 3 4 6 12 23 43 46 53 69 86 92 106 129 138 159 172 212 258 276 318 516 601 636 989 1202 1219 1803 1978 2279 2404 2438 2967 3606 3657 3956 4558 4876 5934 6837 7212 7314 9116 11868 13674 13823 14628 25843 27348 27646 31853 41469 51686 52417 55292 63706 77529 82938 95559 103372 104834 127412 155058 157251 165876 191118 209668 310116 314502 382236 594389 629004 732619 1188778 1369679 1465238 1783167 2197857 2377556 2739358 2930476 3566334 4109037 4395714 5478716 7132668 8218074 8791428 16436148 31502617 63005234 94507851 126010468 189015702 378031404