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144178842820 = 22523313432267
BaseRepresentation
bin1000011001000110111…
…0101000110011000100
3111210011001221002102111
42012101232220303010
54330234240432240
6150122420550404
713262612641345
oct2062156506304
9453131832374
10144178842820
115616721a651
1223b39252404
131079957095c
146d9a6180cc
153b3ca221ea
hex2191ba8cc4

144178842820 has 24 divisors (see below), whose sum is σ = 315939726144. Its totient is φ = 55164078816.

The previous prime is 144178842811. The next prime is 144178842883. The reversal of 144178842820 is 28248871441.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156715674 + ... + 156716593.

It is an arithmetic number, because the mean of its divisors is an integer number (13164155256).

Almost surely, 2144178842820 is an apocalyptic number.

144178842820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144178842820 is an abundant number, since it is smaller than the sum of its proper divisors (171760883324).

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

144178842820 is a wasteful number, since it uses less digits than its factorization.

144178842820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313432299 (or 313432297 counting only the distinct ones).

The product of its (nonzero) digits is 917504, while the sum is 49.

The spelling of 144178842820 in words is "one hundred forty-four billion, one hundred seventy-eight million, eight hundred forty-two thousand, eight hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 313432267 626864534 1253729068 1567161335 3134322670 6268645340 7208942141 14417884282 28835768564 36044710705 72089421410 144178842820