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441222144 = 21031121187
BaseRepresentation
bin11010010011001…
…000010000000000
31010202020101222220
4122103020100000
51400423102034
6111440531040
713635216636
oct3223102000
91122211886
10441222144
11207070800
12103920a80
13705454bc
1442855356
1528b07749
hex1a4c8400

441222144 has 132 divisors (see below), whose sum is σ = 1293736752. Its totient is φ = 133591040.

The previous prime is 441222143. The next prime is 441222169.

441222144 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (132).

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (441222143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 371119 + ... + 372305.

It is an arithmetic number, because the mean of its divisors is an integer number (9801036).

Almost surely, 2441222144 is an apocalyptic number.

441222144 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 441222144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646868376).

441222144 is an abundant number, since it is smaller than the sum of its proper divisors (852514608).

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

441222144 is a wasteful number, since it uses less digits than its factorization.

441222144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1203 counting only the distinct ones).

The product of its digits is 2048, while the sum is 24.

The square root of 441222144 is about 21005.2884769527. The cubic root of 441222144 is about 761.2940465399.

The spelling of 441222144 in words is "four hundred forty-one million, two hundred twenty-two thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 121 128 132 176 192 242 256 264 352 363 384 484 512 528 704 726 768 968 1024 1056 1187 1408 1452 1536 1936 2112 2374 2816 2904 3072 3561 3872 4224 4748 5632 5808 7122 7744 8448 9496 11264 11616 13057 14244 15488 16896 18992 23232 26114 28488 30976 33792 37984 39171 46464 52228 56976 61952 75968 78342 92928 104456 113952 123904 143627 151936 156684 185856 208912 227904 287254 303872 313368 371712 417824 430881 455808 574508 607744 626736 835648 861762 911616 1149016 1215488 1253472 1671296 1723524 1823232 2298032 2506944 3342592 3447048 3646464 4596064 5013888 6685184 6894096 9192128 10027776 13370368 13788192 18384256 20055552 27576384 36768512 40111104 55152768 73537024 110305536 147074048 220611072 441222144