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7690639712 = 257311107523
BaseRepresentation
bin1110010100110010…
…11101100101100000
3201211222021222100212
413022121131211200
5111222300432322
63311045033252
7361403234060
oct71231354540
921758258325
107690639712
113297190498
1215a76b5828
139574189b2
1452d5793a0
1530028d0e2
hex1ca65d960

7690639712 has 48 divisors (see below), whose sum is σ = 17862147072. Its totient is φ = 3189663360.

The previous prime is 7690639703. The next prime is 7690639727. The reversal of 7690639712 is 2179360967.

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, 546818 + ... + 560705.

It is an arithmetic number, because the mean of its divisors is an integer number (372128064).

Almost surely, 27690639712 is an apocalyptic number.

It is an amenable number.

7690639712 is an abundant number, since it is smaller than the sum of its proper divisors (10171507360).

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

7690639712 is a wasteful number, since it uses less digits than its factorization.

7690639712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107571 (or 1107563 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 50.

The square root of 7690639712 is about 87696.2924643910. The cubic root of 7690639712 is about 1973.8803427341.

The spelling of 7690639712 in words is "seven billion, six hundred ninety million, six hundred thirty-nine thousand, seven hundred twelve".

Divisors: 1 2 4 7 8 14 16 28 31 32 56 62 112 124 217 224 248 434 496 868 992 1736 3472 6944 1107523 2215046 4430092 7752661 8860184 15505322 17720368 31010644 34333213 35440736 62021288 68666426 124042576 137332852 240332491 248085152 274665704 480664982 549331408 961329964 1098662816 1922659928 3845319856 7690639712