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2938088640 = 263511512659
BaseRepresentation
bin1010111100011111…
…1010110011000000
321120202112100220210
42233013322303000
522004122314030
61203313234120
7132544225044
oct25707726300
97522470823
102938088640
111278524533
1269bb62940
1337a9185b6
141dc2cc024
15122e14bb0
hexaf1facc0

2938088640 has 112 divisors (see below), whose sum is σ = 9340047360. Its totient is φ = 782515200.

The previous prime is 2938088639. The next prime is 2938088653. The reversal of 2938088640 is 468808392.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2938088640.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1103631 + ... + 1106289.

It is an arithmetic number, because the mean of its divisors is an integer number (83393280).

Almost surely, 22938088640 is an apocalyptic number.

2938088640 is a gapful number since it is divisible by the number (20) 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 2938088640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4670023680).

2938088640 is an abundant number, since it is smaller than the sum of its proper divisors (6401958720).

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

2938088640 is a wasteful number, since it uses less digits than its factorization.

2938088640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3830 (or 3820 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 2938088640 is about 54204.1385873809. The cubic root of 2938088640 is about 1432.2592354455.

The spelling of 2938088640 in words is "two billion, nine hundred thirty-eight million, eighty-eight thousand, six hundred forty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 1151 2302 2659 3453 4604 5318 5755 6906 7977 9208 10636 11510 13295 13812 15954 17265 18416 21272 23020 26590 27624 31908 34530 36832 39885 42544 46040 53180 55248 63816 69060 73664 79770 85088 92080 106360 110496 127632 138120 159540 170176 184160 212720 220992 255264 276240 319080 368320 425440 510528 552480 638160 850880 1104960 1276320 2552640 3060509 6121018 9181527 12242036 15302545 18363054 24484072 30605090 36726108 45907635 48968144 61210180 73452216 91815270 97936288 122420360 146904432 183630540 195872576 244840720 293808864 367261080 489681440 587617728 734522160 979362880 1469044320 2938088640