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145020522655 = 5199149997231
BaseRepresentation
bin1000011100001111100…
…1011001000010011111
3111212022201200212002201
42013003321121002133
54334000223211110
6150342125032331
713322513050411
oct2070371310237
9455281625081
10145020522655
1156559339118
12241330b56a7
13108a1a57b68
14703a3129b1
153b8b87db3a
hex21c3e5909f

145020522655 has 16 divisors (see below), whose sum is σ = 175017600000. Its totient is φ = 115355227680.

The previous prime is 145020522631. The next prime is 145020522769. The reversal of 145020522655 is 556225020541.

145020522655 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 145020522655 - 25 = 145020522623 is a prime.

It is a super-2 number, since 2×1450205226552 (a number of 23 digits) contains 22 as substring.

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, 1442890 + ... + 1540120.

It is an arithmetic number, because the mean of its divisors is an integer number (10938600000).

Almost surely, 2145020522655 is an apocalyptic number.

145020522655 is a deficient number, since it is larger than the sum of its proper divisors (29997077345).

145020522655 is a wasteful number, since it uses less digits than its factorization.

145020522655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98934.

The product of its (nonzero) digits is 120000, while the sum is 37.

The spelling of 145020522655 in words is "one hundred forty-five billion, twenty million, five hundred twenty-two thousand, six hundred fifty-five".

Divisors: 1 5 199 995 1499 7495 97231 298301 486155 1491505 19348969 96744845 145749269 728746345 29004104531 145020522655