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44202123440 = 2453537272153
BaseRepresentation
bin101001001010101001…
…101110000010110000
311020002112002112011222
4221022221232002300
51211011220422230
632150044524212
73123240564356
oct511251560260
9136075075158
1044202123440
1117822a45632
128697250668
134225822937
1421d46d77d6
15123a8856e5
hexa4aa6e0b0

44202123440 has 80 divisors (see below), whose sum is σ = 103250766528. Its totient is φ = 17598332928.

The previous prime is 44202123389. The next prime is 44202123457. The reversal of 44202123440 is 4432120244.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20529404 + ... + 20531556.

Almost surely, 244202123440 is an apocalyptic number.

44202123440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

44202123440 is an abundant number, since it is smaller than the sum of its proper divisors (59048643088).

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

44202123440 is a wasteful number, since it uses less digits than its factorization.

44202123440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246 (or 3240 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 44202123440 its reverse (4432120244), we get a palindrome (48634243684).

The spelling of 44202123440 in words is "forty-four billion, two hundred two million, one hundred twenty-three thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 353 706 727 1412 1454 1765 2153 2824 2908 3530 3635 4306 5648 5816 7060 7270 8612 10765 11632 14120 14540 17224 21530 28240 29080 34448 43060 58160 86120 172240 256631 513262 760009 1026524 1283155 1520018 1565231 2053048 2566310 3040036 3130462 3800045 4106096 5132620 6080072 6260924 7600090 7826155 10265240 12160144 12521848 15200180 15652310 20530480 25043696 30400360 31304620 60800720 62609240 125218480 552526543 1105053086 2210106172 2762632715 4420212344 5525265430 8840424688 11050530860 22101061720 44202123440