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148400146 = 21912973011
BaseRepresentation
bin10001101100001…
…10100000010010
3101100020111201201
420312012200102
5300442301041
622420421414
73451244326
oct1066064022
9340214651
10148400146
117684a254
124184786a
132498b94b
14159cd986
15d065631
hex8d86812

148400146 has 16 divisors (see below), whose sum is σ = 234574560. Its totient is φ = 70217280.

The previous prime is 148400143. The next prime is 148400177. The reversal of 148400146 is 641004841.

It is not an unprimeable number, because it can be changed into a prime (148400143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47781 + ... + 50791.

It is an arithmetic number, because the mean of its divisors is an integer number (14660910).

Almost surely, 2148400146 is an apocalyptic number.

148400146 is a deficient number, since it is larger than the sum of its proper divisors (86174414).

148400146 is a wasteful number, since it uses less digits than its factorization.

148400146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 148400146 is about 12181.9598587419. The cubic root of 148400146 is about 529.4335302836.

Adding to 148400146 its reverse (641004841), we get a palindrome (789404987).

The spelling of 148400146 in words is "one hundred forty-eight million, four hundred thousand, one hundred forty-six".

Divisors: 1 2 19 38 1297 2594 3011 6022 24643 49286 57209 114418 3905267 7810534 74200073 148400146