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145078456 = 2318134807
BaseRepresentation
bin10001010010110…
…11100010111000
3101002222202020011
420221123202320
5244120002311
622221311304
73411101155
oct1051334270
9332882204
10145078456
1174990656
1240705534
1324097a53
14153a722c
15cb0b321
hex8a5b8b8

145078456 has 8 divisors (see below), whose sum is σ = 272022120. Its totient is φ = 72539224.

The previous prime is 145078429. The next prime is 145078477. The reversal of 145078456 is 654870541.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 9067396 + ... + 9067411.

It is an arithmetic number, because the mean of its divisors is an integer number (34002765).

Almost surely, 2145078456 is an apocalyptic number.

It is an amenable number.

145078456 is a deficient number, since it is larger than the sum of its proper divisors (126943664).

145078456 is a wasteful number, since it uses less digits than its factorization.

145078456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18134813 (or 18134809 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 40.

The square root of 145078456 is about 12044.8518463284. The cubic root of 145078456 is about 525.4535231511.

The spelling of 145078456 in words is "one hundred forty-five million, seventy-eight thousand, four hundred fifty-six".

Divisors: 1 2 4 8 18134807 36269614 72539228 145078456