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144875645390 = 25729505914107
BaseRepresentation
bin1000011011101101000…
…0101110100111001110
3111211221122002022212002
42012323100232213032
54333201131123030
6150315511512302
713316103444620
oct2067320564716
9454848068762
10144875645390
1156494585743
12240b2688692
131087aa30878
147024d9cc10
153b7dcb2245
hex21bb42e9ce

144875645390 has 64 divisors (see below), whose sum is σ = 308389593600. Its totient is φ = 47945955456.

The previous prime is 144875645377. The next prime is 144875645399. The reversal of 144875645390 is 93546578441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144875645399) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10262717 + ... + 10276823.

It is an arithmetic number, because the mean of its divisors is an integer number (4818587400).

Almost surely, 2144875645390 is an apocalyptic number.

144875645390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144875645390 is an abundant number, since it is smaller than the sum of its proper divisors (163513948210).

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

144875645390 is a wasteful number, since it uses less digits than its factorization.

144875645390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19209.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 144875645390 in words is "one hundred forty-four billion, eight hundred seventy-five million, six hundred forty-five thousand, three hundred ninety".

Divisors: 1 2 5 7 10 14 29 35 58 70 145 203 290 406 1015 2030 5059 10118 14107 25295 28214 35413 50590 70535 70826 98749 141070 146711 177065 197498 293422 354130 409103 493745 733555 818206 987490 1026977 1467110 2045515 2053954 2863721 4091030 5134885 5727442 10269770 14318605 28637210 71367313 142734626 356836565 499571191 713673130 999142382 2069652077 2497855955 4139304154 4995711910 10348260385 14487564539 20696520770 28975129078 72437822695 144875645390