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47680631518 = 21319313401769
BaseRepresentation
bin101100011001111111…
…001011001011011110
311120001221112001012111
4230121333023023132
51240122220202033
633523145224234
73305366452342
oct543177131336
9146057461174
1047680631518
11192485231a3
1292a819207a
13465b3a5a40
14244469d622
151390e497cd
hexb19fcb2de

47680631518 has 64 divisors (see below), whose sum is σ = 81644270400. Its totient is φ = 20702822400.

The previous prime is 47680631501. The next prime is 47680631519. The reversal of 47680631518 is 81513608674.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47680631519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 62003038 + ... + 62003806.

It is an arithmetic number, because the mean of its divisors is an integer number (1275691725).

Almost surely, 247680631518 is an apocalyptic number.

47680631518 is a deficient number, since it is larger than the sum of its proper divisors (33963638882).

47680631518 is a wasteful number, since it uses less digits than its factorization.

47680631518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517.

The product of its (nonzero) digits is 967680, while the sum is 49.

The spelling of 47680631518 in words is "forty-seven billion, six hundred eighty million, six hundred thirty-one thousand, five hundred eighteen".

Divisors: 1 2 13 19 26 38 247 313 401 494 626 769 802 1538 4069 5213 5947 7619 8138 9997 10426 11894 14611 15238 19994 29222 77311 99047 125513 154622 189943 198094 240697 251026 308369 379886 481394 616738 1631669 2384747 3129061 3263338 4008797 4573243 4769494 5859011 6258122 8017594 9146486 11718022 31001711 59452159 62003422 76167143 96519497 118904318 152334286 193038994 1254753461 1833870443 2509506922 3667740886 23840315759 47680631518