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444770144 = 25713231379
BaseRepresentation
bin11010100000101…
…010011101100000
31010222220122221022
4122200222131200
51402330121034
6112044545012
714010324650
oct3240523540
91128818838
10444770144
11209074435
12104b52168
13711b8400
14430da360
15290a8b2e
hex1a82a760

444770144 has 144 divisors (see below), whose sum is σ = 1121541120. Its totient is φ = 169827840.

The previous prime is 444770101. The next prime is 444770153. The reversal of 444770144 is 441077444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1173347 + ... + 1173725.

It is an arithmetic number, because the mean of its divisors is an integer number (7788480).

Almost surely, 2444770144 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 444770144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560770560).

444770144 is an abundant number, since it is smaller than the sum of its proper divisors (676770976).

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

444770144 is a wasteful number, since it uses less digits than its factorization.

444770144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 35.

The square root of 444770144 is about 21089.5742963200. The cubic root of 444770144 is about 763.3291993106.

The spelling of 444770144 in words is "four hundred forty-four million, seven hundred seventy thousand, one hundred forty-four".

Divisors: 1 2 4 7 8 13 14 16 26 28 31 32 52 56 62 91 104 112 124 169 182 208 217 224 248 338 364 379 403 416 434 496 676 728 758 806 868 992 1183 1352 1456 1516 1612 1736 2366 2653 2704 2821 2912 3032 3224 3472 4732 4927 5239 5306 5408 5642 6064 6448 6944 9464 9854 10478 10612 11284 11749 12128 12896 18928 19708 20956 21224 22568 23498 34489 36673 37856 39416 41912 42448 45136 46996 64051 68978 73346 78832 82243 83824 84896 90272 93992 128102 137956 146692 152737 157664 164486 167648 187984 256204 275912 293384 305474 328972 375968 448357 512408 551824 586768 610948 657944 896714 1024816 1069159 1103648 1173536 1221896 1315888 1793428 1985581 2049632 2138318 2443792 2631776 3586856 3971162 4276636 4887584 7173712 7942324 8553272 13899067 14347424 15884648 17106544 27798134 31769296 34213088 55596268 63538592 111192536 222385072 444770144