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145011506464 = 25117118132057
BaseRepresentation
bin1000011100001101011…
…0111111110100100000
3111212022002201210012201
42013003112333310200
54333440421201324
6150341203502544
713322343316216
oct2070326776440
9455262653181
10145011506464
1156554240120
1224130087a54
131089cc1c036
147039046cb6
153b8ab9c444
hex21c35bfd20

145011506464 has 96 divisors (see below), whose sum is σ = 317586552192. Its totient is φ = 64624896000.

The previous prime is 145011506459. The next prime is 145011506483. The reversal of 145011506464 is 464605110541.

145011506464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4507524 + ... + 4539580.

It is an arithmetic number, because the mean of its divisors is an integer number (3308193252).

Almost surely, 2145011506464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145011506464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158793276096).

145011506464 is an abundant number, since it is smaller than the sum of its proper divisors (172575045728).

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

145011506464 is a wasteful number, since it uses less digits than its factorization.

145011506464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32330 (or 32322 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 145011506464 in words is "one hundred forty-five billion, eleven million, five hundred six thousand, four hundred sixty-four".

Divisors: 1 2 4 8 11 16 22 32 44 71 88 142 176 181 284 352 362 568 724 781 1136 1448 1562 1991 2272 2896 3124 3982 5792 6248 7964 12496 12851 15928 24992 25702 31856 32057 51404 63712 64114 102808 128228 141361 205616 256456 282722 352627 411232 512912 565444 705254 1025824 1130888 1410508 2261776 2276047 2821016 4523552 4552094 5642032 5802317 9104188 11284064 11604634 18208376 23209268 25036517 36416752 46418536 50073034 63825487 72833504 92837072 100146068 127650974 185674144 200292136 255301948 400584272 411964507 510603896 801168544 823929014 1021207792 1647858028 2042415584 3295716056 4531609577 6591432112 9063219154 13182864224 18126438308 36252876616 72505753232 145011506464