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145174792532 = 2273119619321
BaseRepresentation
bin1000011100110100010…
…1111000100101010100
3111212201110222120120212
42013031011320211110
54334304221330112
6150405315344552
713326365243000
oct2071505704524
9455643876525
10145174792532
1156628427390
12241768b2158
13108c79c0403
1470529cd700
153b9a1a3522
hex21cd178954

145174792532 has 48 divisors (see below), whose sum is σ = 323209219200. Its totient is φ = 56561601600.

The previous prime is 145174792519. The next prime is 145174792547. The reversal of 145174792532 is 235297471541.

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 (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4794569 + ... + 4824752.

It is an arithmetic number, because the mean of its divisors is an integer number (6733525400).

Almost surely, 2145174792532 is an apocalyptic number.

It is an amenable number.

145174792532 is an abundant number, since it is smaller than the sum of its proper divisors (178034426668).

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

145174792532 is a wasteful number, since it uses less digits than its factorization.

145174792532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9619357 (or 9619341 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 50.

The spelling of 145174792532 in words is "one hundred forty-five billion, one hundred seventy-four million, seven hundred ninety-two thousand, five hundred thirty-two".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 154 196 308 343 539 686 1078 1372 2156 3773 7546 15092 9619321 19238642 38477284 67335247 105812531 134670494 211625062 269340988 423250124 471346729 740687717 942693458 1481375434 1885386916 2962750868 3299427103 5184814019 6598854206 10369628038 13197708412 20739256076 36293698133 72587396266 145174792532