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97317680020 = 22511659671249
BaseRepresentation
bin101101010100010010…
…1011111001110010100
3100022012020101100222021
41122220211133032110
53043301311230040
6112412423342524
710013423426431
oct1325045371624
9308166340867
1097317680020
11382aa325430
1216a3b5b1a44
13923bba6462
1449d2b10b88
1527e89e824a
hex16a895f394

97317680020 has 48 divisors (see below), whose sum is σ = 223284600000. Its totient is φ = 35334494720.

The previous prime is 97317680003. The next prime is 97317680071. The reversal of 97317680020 is 2008671379.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190645 + ... + 480604.

It is an arithmetic number, because the mean of its divisors is an integer number (4651762500).

Almost surely, 297317680020 is an apocalyptic number.

It is an amenable number.

97317680020 is an abundant number, since it is smaller than the sum of its proper divisors (125966919980).

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

97317680020 is a wasteful number, since it uses less digits than its factorization.

97317680020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671928 (or 671926 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 97317680020 in words is "ninety-seven billion, three hundred seventeen million, six hundred eighty thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 659 1318 2636 3295 6590 7249 13180 14498 28996 36245 72490 144980 671249 1342498 2684996 3356245 6712490 7383739 13424980 14767478 29534956 36918695 73837390 147674780 442353091 884706182 1769412364 2211765455 4423530910 4865884001 8847061820 9731768002 19463536004 24329420005 48658840010 97317680020