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145446492 = 22317712973
BaseRepresentation
bin10001010101101…
…01011001011100
3101010200110002010
420222311121130
5244213241432
622233231220
73414163152
oct1052653134
9333613063
10145446492
1175112114
1240862510
1324196419
14154613d2
15cb803cc
hex8ab565c

145446492 has 24 divisors (see below), whose sum is σ = 359338896. Its totient is φ = 45630208.

The previous prime is 145446487. The next prime is 145446541. The reversal of 145446492 is 294644541.

145446492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145446492.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356283 + ... + 356690.

It is an arithmetic number, because the mean of its divisors is an integer number (14972454).

Almost surely, 2145446492 is an apocalyptic number.

145446492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145446492 is an abundant number, since it is smaller than the sum of its proper divisors (213892404).

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

145446492 is a wasteful number, since it uses less digits than its factorization.

145446492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712997 (or 712995 counting only the distinct ones).

The product of its digits is 138240, while the sum is 39.

The square root of 145446492 is about 12060.1198999015. The cubic root of 145446492 is about 525.8974726315.

The spelling of 145446492 in words is "one hundred forty-five million, four hundred forty-six thousand, four hundred ninety-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 712973 1425946 2138919 2851892 4277838 8555676 12120541 24241082 36361623 48482164 72723246 145446492