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7148637982 = 2297115711057
BaseRepresentation
bin1101010100001011…
…11000111100011110
3200110012102102202201
412222011320330132
5104120022403412
63141204042114
7342102264103
oct65205707436
920405372681
107148637982
113039246582
12147609333a
1389c048c05
144bb5acaaa
152bc8c9e57
hex1aa178f1e

7148637982 has 32 divisors (see below), whose sum is σ = 11321622720. Its totient is φ = 3380482560.

The previous prime is 7148637949. The next prime is 7148638043. The reversal of 7148637982 is 2897368417.

It is a super-2 number, since 2×71486379822 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 640998 + ... + 652054.

It is an arithmetic number, because the mean of its divisors is an integer number (353800710).

Almost surely, 27148637982 is an apocalyptic number.

7148637982 is a deficient number, since it is larger than the sum of its proper divisors (4172984738).

7148637982 is a wasteful number, since it uses less digits than its factorization.

7148637982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11316.

The product of its digits is 4064256, while the sum is 55.

The square root of 7148637982 is about 84549.6184615874. The cubic root of 7148637982 is about 1926.3761886455.

The spelling of 7148637982 in words is "seven billion, one hundred forty-eight million, six hundred thirty-seven thousand, nine hundred eighty-two".

Divisors: 1 2 29 58 71 142 157 314 2059 4118 4553 9106 11057 11147 22114 22294 320653 323263 641306 646526 785047 1570094 1735949 3471898 22766363 45532726 50342521 100685042 123252379 246504758 3574318991 7148637982