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97385974580 = 22517286429337
BaseRepresentation
bin101101010110010101…
…0000000101100110100
3100022100222220002111102
41122230222000230310
53043421302141310
6112423303225232
710015213061066
oct1325452005464
9308328802442
1097385974580
1138334931114
1216a5a448218
13925009893b
1449dbc0b736
1527ee9d88a5
hex16aca80b34

97385974580 has 24 divisors (see below), whose sum is σ = 216540579528. Its totient is φ = 36662955008.

The previous prime is 97385974577. The next prime is 97385974589. The reversal of 97385974580 is 8547958379.

It can be written as a sum of positive squares in 4 ways, for example, as 35780748964 + 61605225616 = 189158^2 + 248204^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97385974589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143214329 + ... + 143215008.

It is an arithmetic number, because the mean of its divisors is an integer number (9022524147).

Almost surely, 297385974580 is an apocalyptic number.

It is an amenable number.

97385974580 is an abundant number, since it is smaller than the sum of its proper divisors (119154604948).

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

97385974580 is a wasteful number, since it uses less digits than its factorization.

97385974580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286429363 (or 286429361 counting only the distinct ones).

The product of its (nonzero) digits is 76204800, while the sum is 65.

The spelling of 97385974580 in words is "ninety-seven billion, three hundred eighty-five million, nine hundred seventy-four thousand, five hundred eighty".

Divisors: 1 2 4 5 10 17 20 34 68 85 170 340 286429337 572858674 1145717348 1432146685 2864293370 4869298729 5728586740 9738597458 19477194916 24346493645 48692987290 97385974580