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7999949652 = 2233121505241
BaseRepresentation
bin1110111001101010…
…11000101101010100
3202122112022112211120
413130311120231110
5112340441342102
63401454403540
7402150310242
oct73465305524
922575275746
107999949652
113435843642
1216732005b0
139a6526226
1455c693792
1531c4da6bc
hex1dcd58b54

7999949652 has 24 divisors (see below), whose sum is σ = 19268696832. Its totient is φ = 2580628800.

The previous prime is 7999949647. The next prime is 7999949687. The reversal of 7999949652 is 2569499997.

It is a super-2 number, since 2×79999496522 (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 7 ways as a sum of consecutive naturals, for example, 10752249 + ... + 10752992.

It is an arithmetic number, because the mean of its divisors is an integer number (802862368).

Almost surely, 27999949652 is an apocalyptic number.

It is an amenable number.

7999949652 is an abundant number, since it is smaller than the sum of its proper divisors (11268747180).

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

7999949652 is a wasteful number, since it uses less digits than its factorization.

7999949652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21505279 (or 21505277 counting only the distinct ones).

The product of its digits is 99202320, while the sum is 69.

The square root of 7999949652 is about 89442.4376456724. The cubic root of 7999949652 is about 1999.9958043245.

The spelling of 7999949652 in words is "seven billion, nine hundred ninety-nine million, nine hundred forty-nine thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 21505241 43010482 64515723 86020964 129031446 258062892 666662471 1333324942 1999987413 2666649884 3999974826 7999949652