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145211936 = 2531146383
BaseRepresentation
bin10001010011111…
…00001000100000
3101010020112022212
420221330020200
5244133240221
622224221252
73412165262
oct1051741040
9333215285
10145211936
1174a71971
124076a828
132411372c
14153ddb32
15cb35b5b
hex8a7c220

145211936 has 24 divisors (see below), whose sum is σ = 295110144. Its totient is φ = 70263360.

The previous prime is 145211933. The next prime is 145211951. The reversal of 145211936 is 639112541.

145211936 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145211933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72200 + ... + 74183.

It is an arithmetic number, because the mean of its divisors is an integer number (12296256).

Almost surely, 2145211936 is an apocalyptic number.

145211936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

145211936 is an abundant number, since it is smaller than the sum of its proper divisors (149898208).

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

145211936 is a wasteful number, since it uses less digits than its factorization.

145211936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146424 (or 146416 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 145211936 is about 12050.3915289089. The cubic root of 145211936 is about 525.6146222766.

The spelling of 145211936 in words is "one hundred forty-five million, two hundred eleven thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 16 31 32 62 124 248 496 992 146383 292766 585532 1171064 2342128 4537873 4684256 9075746 18151492 36302984 72605968 145211936