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145526166640 = 2451819077083
BaseRepresentation
bin1000011110001000001…
…0010001010001110000
3111220121222011020020201
42013202002101101300
54341014144313030
6150504230444544
713341163002211
oct2074202212160
9456558136221
10145526166640
11567987aaa08
1224254503754
1310952737b9a
147087537408
153bbae5e2ca
hex21e2091470

145526166640 has 20 divisors (see below), whose sum is σ = 338348337624. Its totient is φ = 58210466624.

The previous prime is 145526166629. The next prime is 145526166683. The reversal of 145526166640 is 46661625541.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 909538462 + ... + 909538621.

Almost surely, 2145526166640 is an apocalyptic number.

145526166640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145526166640 is an abundant number, since it is smaller than the sum of its proper divisors (192822170984).

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

145526166640 is a wasteful number, since it uses less digits than its factorization.

145526166640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1819077096 (or 1819077090 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 46.

The spelling of 145526166640 in words is "one hundred forty-five billion, five hundred twenty-six million, one hundred sixty-six thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 1819077083 3638154166 7276308332 9095385415 14552616664 18190770830 29105233328 36381541660 72763083320 145526166640