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145730028860 = 225135091101179
BaseRepresentation
bin1000011110111000101…
…1111100010100111100
3111221011011202111122022
42013232023330110330
54341423341410420
6150540352135312
713346216543543
oct2075613742474
9457134674568
10145730028860
1156892890689
12242b0837538
1310985a45110
1470a664315a
153bcdcccc25
hex21ee2fc53c

145730028860 has 48 divisors (see below), whose sum is σ = 330221858400. Its totient is φ = 53702248704.

The previous prime is 145730028737. The next prime is 145730028881. The reversal of 145730028860 is 68820037541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 418250 + ... + 682929.

It is an arithmetic number, because the mean of its divisors is an integer number (6879622050).

Almost surely, 2145730028860 is an apocalyptic number.

145730028860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145730028860 is an abundant number, since it is smaller than the sum of its proper divisors (184491829540).

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

145730028860 is a wasteful number, since it uses less digits than its factorization.

145730028860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101710 (or 1101708 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 145730028860 in words is "one hundred forty-five billion, seven hundred thirty million, twenty-eight thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 509 1018 2036 2545 5090 6617 10180 13234 26468 33085 66170 132340 1101179 2202358 4404716 5505895 11011790 14315327 22023580 28630654 57261308 71576635 143153270 286306540 560500111 1121000222 2242000444 2802500555 5605001110 7286501443 11210002220 14573002886 29146005772 36432507215 72865014430 145730028860