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7442378380 = 2251677432999
BaseRepresentation
bin1101110111001100…
…11010111010001100
3201012200010222211201
412323212122322030
5110220222102010
63230255555244
7352300113103
oct67346327214
921180128751
107442378380
11317a035038
12153852bb24
13917b647b8
145085d303a
152d859e23a
hex1bb99ae8c

7442378380 has 48 divisors (see below), whose sum is σ = 15748992000. Its totient is φ = 2954157248.

The previous prime is 7442378353. The next prime is 7442378417. The reversal of 7442378380 is 838732447.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7442378380.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2480121 + ... + 2483119.

It is an arithmetic number, because the mean of its divisors is an integer number (328104000).

Almost surely, 27442378380 is an apocalyptic number.

It is an amenable number.

7442378380 is an abundant number, since it is smaller than the sum of its proper divisors (8306613620).

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

7442378380 is a wasteful number, since it uses less digits than its factorization.

7442378380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918 (or 3916 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 46.

The square root of 7442378380 is about 86269.2203511774. The cubic root of 7442378380 is about 1952.4080161794.

The spelling of 7442378380 in words is "seven billion, four hundred forty-two million, three hundred seventy-eight thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 167 334 668 743 835 1486 1670 2972 2999 3340 3715 5998 7430 11996 14860 14995 29990 59980 124081 248162 496324 500833 620405 1001666 1240810 2003332 2228257 2481620 2504165 4456514 5008330 8913028 10016660 11141285 22282570 44565140 372118919 744237838 1488475676 1860594595 3721189190 7442378380