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87250929208725 = 35210196711911349
BaseRepresentation
bin10011110101101010110000…
…101001000100110110010101
3102102221002220021101112212110
4103311222300221010312111
542414004400334134400
6505322305025541233
724243446235350622
oct2365526051046625
9372832807345773
1087250929208725
1125889a02a02a27
1299519937a4819
13398b95bbcbb79
141778d78b9d349
15a148e47ece50
hex4f5ab0a44d95

87250929208725 has 48 divisors (see below), whose sum is σ = 145833802646400. Its totient is φ = 46025448672000.

The previous prime is 87250929208697. The next prime is 87250929208733. The reversal of 87250929208725 is 52780292905278.

It is not a de Polignac number, because 87250929208725 - 212 = 87250929204629 is a prime.

It is a super-2 number, since 2×872509292087252 (a number of 29 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (66) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1369351 + ... + 13280699.

It is an arithmetic number, because the mean of its divisors is an integer number (3038204221800).

Almost surely, 287250929208725 is an apocalyptic number.

It is an amenable number.

87250929208725 is a deficient number, since it is larger than the sum of its proper divisors (58582873437675).

87250929208725 is a wasteful number, since it uses less digits than its factorization.

87250929208725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11912430 (or 11912425 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 66.

The spelling of 87250929208725 in words is "eighty-seven trillion, two hundred fifty billion, nine hundred twenty-nine million, two hundred eight thousand, seven hundred twenty-five".

Divisors: 1 3 5 15 25 75 101 303 505 967 1515 2525 2901 4835 7575 14505 24175 72525 97667 293001 488335 1465005 2441675 7325025 11911349 35734047 59556745 178670235 297783725 893351175 1203046249 3609138747 6015231245 11518274483 18045693735 30076156225 34554823449 57591372415 90228468675 172774117245 287956862075 863870586225 1163345722783 3490037168349 5816728613915 17450185841745 29083643069575 87250929208725