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145055004 = 22316374159
BaseRepresentation
bin10001010010101…
…01110100011100
3101002221120001120
420221111310130
5244113230004
622221010540
73410642613
oct1051256434
9332846046
10145055004
1174974a76
12406b3a50
132408a183
141539c87a
15cb043d9
hex8a55d1c

145055004 has 24 divisors (see below), whose sum is σ = 340542720. Its totient is φ = 48054384.

The previous prime is 145054993. The next prime is 145055017. The reversal of 145055004 is 400550541.

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 7 ways as a sum of consecutive naturals, for example, 35124 + ... + 39035.

It is an arithmetic number, because the mean of its divisors is an integer number (14189280).

Almost surely, 2145055004 is an apocalyptic number.

It is an amenable number.

145055004 is an abundant number, since it is smaller than the sum of its proper divisors (195487716).

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

145055004 is a wasteful number, since it uses less digits than its factorization.

145055004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74329 (or 74327 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 145055004 is about 12043.8782790262. The cubic root of 145055004 is about 525.4252083565.

The spelling of 145055004 in words is "one hundred forty-five million, fifty-five thousand, four".

Divisors: 1 2 3 4 6 12 163 326 489 652 978 1956 74159 148318 222477 296636 444954 889908 12087917 24175834 36263751 48351668 72527502 145055004