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7990272032 = 251092290789
BaseRepresentation
bin1110111000100000…
…11110000000100000
3202121212002212122012
413130100132000200
5112331002201112
63400511132052
7402002122511
oct73420360040
922555085565
107990272032
113430333706
12166bb14028
139a4518322
1455b294a08
1531b728022
hex1dc41e020

7990272032 has 24 divisors (see below), whose sum is σ = 15875174700. Its totient is φ = 3958481664.

The previous prime is 7990272011. The next prime is 7990272061. The reversal of 7990272032 is 2302720997.

It can be written as a sum of positive squares in 2 ways, for example, as 7886150416 + 104121616 = 88804^2 + 10204^2 .

It is a super-2 number, since 2×79902720322 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1141907 + ... + 1148882.

Almost surely, 27990272032 is an apocalyptic number.

It is an amenable number.

7990272032 is a deficient number, since it is larger than the sum of its proper divisors (7884902668).

7990272032 is a wasteful number, since it uses less digits than its factorization.

7990272032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290908 (or 2290900 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 7990272032 is about 89388.3215638374. The cubic root of 7990272032 is about 1999.1890071898.

The spelling of 7990272032 in words is "seven billion, nine hundred ninety million, two hundred seventy-two thousand, thirty-two".

Divisors: 1 2 4 8 16 32 109 218 436 872 1744 3488 2290789 4581578 9163156 18326312 36652624 73305248 249696001 499392002 998784004 1997568008 3995136016 7990272032