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143904140 = 22525912777
BaseRepresentation
bin10001001001111…
…00110110001100
3101000210002100222
420210330312030
5243314413030
622140210512
73365110412
oct1044746614
9330702328
10143904140
1174259346
1240239a38
1323a763a3
141517d2b2
15c9783e5
hex893cd8c

143904140 has 24 divisors (see below), whose sum is σ = 302424192. Its totient is φ = 57518720.

The previous prime is 143904113. The next prime is 143904143. The reversal of 143904140 is 41409341.

It is not an unprimeable number, because it can be changed into a prime (143904143) by changing a digit.

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, 50432 + ... + 53208.

It is an arithmetic number, because the mean of its divisors is an integer number (12601008).

Almost surely, 2143904140 is an apocalyptic number.

143904140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143904140 is an abundant number, since it is smaller than the sum of its proper divisors (158520052).

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

143904140 is a wasteful number, since it uses less digits than its factorization.

143904140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5377 (or 5375 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 143904140 is about 11996.0051683883. The cubic root of 143904140 is about 524.0319454914.

The spelling of 143904140 in words is "one hundred forty-three million, nine hundred four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 2591 2777 5182 5554 10364 11108 12955 13885 25910 27770 51820 55540 7195207 14390414 28780828 35976035 71952070 143904140