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145455766488 = 23324285347143
BaseRepresentation
bin1000011101110111010…
…1101101101111011000
3111220110001200112101200
42013131311231233120
54340343134011423
6150453233514200
713336346421024
oct2073565555730
9456401615350
10145455766488
1156761a9626a
1224234a12960
1310940c891a6
14707c04d384
153bb4ba4d43
hex21ddd6dbd8

145455766488 has 48 divisors (see below), whose sum is σ = 393960250320. Its totient is φ = 48483095616.

The previous prime is 145455766481. The next prime is 145455766499. The reversal of 145455766488 is 884667554541.

145455766488 is a `hidden beast` number, since 1 + 4 + 5 + 45 + 57 + 66 + 488 = 666.

It is a super-2 number, since 2×1454557664882 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145455766481) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3061845 + ... + 3108987.

It is an arithmetic number, because the mean of its divisors is an integer number (8207505215).

Almost surely, 2145455766488 is an apocalyptic number.

145455766488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

145455766488 is an abundant number, since it is smaller than the sum of its proper divisors (248504483832).

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

145455766488 is a wasteful number, since it uses less digits than its factorization.

145455766488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90008 (or 90001 counting only the distinct ones).

The product of its digits is 129024000, while the sum is 63.

The spelling of 145455766488 in words is "one hundred forty-five billion, four hundred fifty-five million, seven hundred sixty-six thousand, four hundred eighty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 42853 47143 85706 94286 128559 141429 171412 188572 257118 282858 342824 377144 385677 424287 514236 565716 771354 848574 1028472 1131432 1542708 1697148 3085416 3394296 2020218979 4040437958 6060656937 8080875916 12121313874 16161751832 18181970811 24242627748 36363941622 48485255496 72727883244 145455766488