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444460020 = 223531832879
BaseRepresentation
bin11010011111011…
…110101111110100
31010222022220112020
4122133132233310
51402240210040
6112034153140
714004563544
oct3237365764
91128286466
10444460020
11208982434
12104a227b0
137110a1c4
1443059324
1529046cd0
hex1a7debf4

444460020 has 96 divisors (see below), whose sum is σ = 1300561920. Its totient is φ = 113278080.

The previous prime is 444460013. The next prime is 444460033. The reversal of 444460020 is 20064444.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152941 + ... + 155819.

It is an arithmetic number, because the mean of its divisors is an integer number (13547520).

Almost surely, 2444460020 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 444460020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (650280960).

444460020 is an abundant number, since it is smaller than the sum of its proper divisors (856101900).

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

444460020 is a wasteful number, since it uses less digits than its factorization.

444460020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005 (or 3003 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 444460020 is about 21082.2204712881. The cubic root of 444460020 is about 763.1517430449.

The spelling of 444460020 in words is "four hundred forty-four million, four hundred sixty thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 31 60 62 83 93 124 155 166 186 249 310 332 372 415 465 498 620 830 930 996 1245 1660 1860 2490 2573 2879 4980 5146 5758 7719 8637 10292 11516 12865 14395 15438 17274 25730 28790 30876 34548 38595 43185 51460 57580 77190 86370 89249 154380 172740 178498 238957 267747 356996 446245 477914 535494 716871 892490 955828 1070988 1194785 1338735 1433742 1784980 2389570 2677470 2867484 3584355 4779140 5354940 7168710 7407667 14337420 14815334 22223001 29630668 37038335 44446002 74076670 88892004 111115005 148153340 222230010 444460020