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10205522145 = 3257132191707
BaseRepresentation
bin10011000000100101…
…11110100011100001
3222100020111020111200
421200102332203201
5131400103202040
64404403431413
7510621335610
oct114022764341
928306436450
1010205522145
114367829925
121b89985569
13c68459100
146cb581877
153eae58630
hex2604be8e1

10205522145 has 72 divisors (see below), whose sum is σ = 21891519936. Its totient is φ = 4306483584.

The previous prime is 10205522099. The next prime is 10205522191. The reversal of 10205522145 is 54122550201.

10205522145 is a `hidden beast` number, since 102 + 0 + 552 + 2 + 1 + 4 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (10205522099) and next prime (10205522191).

It is not a de Polignac number, because 10205522145 - 210 = 10205521121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 42619 + ... + 149088.

It is an arithmetic number, because the mean of its divisors is an integer number (304048888).

Almost surely, 210205522145 is an apocalyptic number.

10205522145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10205522145 is an abundant number, since it is smaller than the sum of its proper divisors (11685997791).

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

10205522145 is a wasteful number, since it uses less digits than its factorization.

10205522145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191751 (or 191735 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The spelling of 10205522145 in words is "ten billion, two hundred five million, five hundred twenty-two thousand, one hundred forty-five".

Divisors: 1 3 5 7 9 13 15 21 35 39 45 63 65 91 105 117 169 195 273 315 455 507 585 819 845 1183 1365 1521 2535 3549 4095 5915 7605 10647 17745 53235 191707 575121 958535 1341949 1725363 2492191 2875605 4025847 6709745 7476573 8626815 12077541 12460955 17445337 20129235 22429719 32398483 37382865 52336011 60387705 87226685 97195449 112148595 157008033 161992415 226789381 261680055 291586347 485977245 680368143 785040165 1133946905 1457931735 2041104429 3401840715 10205522145