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5379038640 = 243257470887
BaseRepresentation
bin1010000001001110…
…11001110110110000
3111212212121110211100
411000213121312300
542004013214030
62245431244400
7250204034253
oct50047316660
914785543740
105379038640
112310366388
121061519700
13679541301
1439056b09a
15217379360
hex1409d9db0

5379038640 has 60 divisors (see below), whose sum is σ = 18064607184. Its totient is φ = 1434410112.

The previous prime is 5379038593. The next prime is 5379038659. The reversal of 5379038640 is 468309735.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×53790386402 = 57868113381226099200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3734724 + ... + 3736163.

Almost surely, 25379038640 is an apocalyptic number.

It is an amenable number.

5379038640 is an abundant number, since it is smaller than the sum of its proper divisors (12685568544).

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

5379038640 is a wasteful number, since it uses less digits than its factorization.

5379038640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7470906 (or 7470897 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 5379038640 is about 73341.9296173751. The cubic root of 5379038640 is about 1752.1376479080.

The spelling of 5379038640 in words is "five billion, three hundred seventy-nine million, thirty-eight thousand, six hundred forty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 36 40 45 48 60 72 80 90 120 144 180 240 360 720 7470887 14941774 22412661 29883548 37354435 44825322 59767096 67237983 74708870 89650644 112063305 119534192 134475966 149417740 179301288 224126610 268951932 298835480 336189915 358602576 448253220 537903864 597670960 672379830 896506440 1075807728 1344759660 1793012880 2689519320 5379038640