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145455510 = 23537131041
BaseRepresentation
bin10001010101101…
…11100110010110
3101010200220110010
420222313212112
5244214034020
622233341050
73414231354
oct1052674626
9333626403
10145455510
1175118972
1240867786
132419a565
14154647d4
15cb82de0
hex8ab7996

145455510 has 32 divisors (see below), whose sum is σ = 358530912. Its totient is φ = 37739520.

The previous prime is 145455463. The next prime is 145455517. The reversal of 145455510 is 15554541.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145455517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64411 + ... + 66630.

It is an arithmetic number, because the mean of its divisors is an integer number (11204091).

Almost surely, 2145455510 is an apocalyptic number.

145455510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145455510 is an abundant number, since it is smaller than the sum of its proper divisors (213075402).

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

145455510 is a wasteful number, since it uses less digits than its factorization.

145455510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131088.

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 145455510 is about 12060.4937709863. The cubic root of 145455510 is about 525.9083413373.

The spelling of 145455510 in words is "one hundred forty-five million, four hundred fifty-five thousand, five hundred ten".

Divisors: 1 2 3 5 6 10 15 30 37 74 111 185 222 370 555 1110 131041 262082 393123 655205 786246 1310410 1965615 3931230 4848517 9697034 14545551 24242585 29091102 48485170 72727755 145455510