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145251355214252 = 22771541135053719
BaseRepresentation
bin100001000001101011110111…
…011011100100000110101100
3201001021220010200112112121002
4201001223313123210012230
5123014244233413324002
61232531315034055432
742411030663104030
oct4101536733440654
9631256120475532
10145251355214252
1142310832361531
121435a828b7a578
1363081b4561371
1427c22bb45a1c0
1511bd4c39c2002
hex841af76e41ac

145251355214252 has 48 divisors (see below), whose sum is σ = 295138836679680. Its totient is φ = 61260366484800.

The previous prime is 145251355214239. The next prime is 145251355214279. The reversal of 145251355214252 is 252412553152541.

It is a junction number, because it is equal to n+sod(n) for n = 145251355214197 and 145251355214206.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66451352 + ... + 68602367.

It is an arithmetic number, because the mean of its divisors is an integer number (6148725764160).

Almost surely, 2145251355214252 is an apocalyptic number.

It is an amenable number.

145251355214252 is an abundant number, since it is smaller than the sum of its proper divisors (149887481465428).

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

145251355214252 is a wasteful number, since it uses less digits than its factorization.

145251355214252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135054342 (or 135054340 counting only the distinct ones).

The product of its digits is 2400000, while the sum is 47.

The spelling of 145251355214252 in words is "one hundred forty-five trillion, two hundred fifty-one billion, three hundred fifty-five million, two hundred fourteen thousand, two hundred fifty-two".

Divisors: 1 2 4 7 14 28 71 142 284 497 541 994 1082 1988 2164 3787 7574 15148 38411 76822 153644 268877 537754 1075508 135053719 270107438 540214876 945376033 1890752066 3781504132 9588814049 19177628098 38355256196 67121698343 73064061979 134243396686 146128123958 268486793372 292256247916 511448433853 1022896867706 2045793735412 5187548400509 10375096801018 20750193602036 36312838803563 72625677607126 145251355214252