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145671460 = 22511662143
BaseRepresentation
bin10001010111011…
…00010100100100
3101011002212200021
420223230110210
5244242441320
622242124524
73416121064
oct1053542444
9334085607
10145671460
1175256140
1240950744
132424493c
14154bd3a4
15cbc6daa
hex8aec524

145671460 has 24 divisors (see below), whose sum is σ = 333720576. Its totient is φ = 52971360.

The previous prime is 145671457. The next prime is 145671469. The reversal of 145671460 is 64176541.

It is not an unprimeable number, because it can be changed into a prime (145671469) 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, 330852 + ... + 331291.

It is an arithmetic number, because the mean of its divisors is an integer number (13905024).

Almost surely, 2145671460 is an apocalyptic number.

145671460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145671460 is an abundant number, since it is smaller than the sum of its proper divisors (188049116).

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

145671460 is a wasteful number, since it uses less digits than its factorization.

145671460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662163 (or 662161 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 145671460 is about 12069.4432348804. The cubic root of 145671460 is about 526.1684752868.

The spelling of 145671460 in words is "one hundred forty-five million, six hundred seventy-one thousand, four hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 662143 1324286 2648572 3310715 6621430 7283573 13242860 14567146 29134292 36417865 72835730 145671460