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150145420 = 2257507271
BaseRepresentation
bin10001111001100…
…00100110001100
3101110112011210111
420330300212030
5301414123140
622522045404
73502133515
oct1074604614
9343464714
10150145420
1177831527
1242349864
1325150159
1415d25a0c
15d2ac7ea
hex8f3098c

150145420 has 12 divisors (see below), whose sum is σ = 315305424. Its totient is φ = 60058160.

The previous prime is 150145409. The next prime is 150145421. The reversal of 150145420 is 24541051.

It is a junction number, because it is equal to n+sod(n) for n = 150145391 and 150145400.

It is not an unprimeable number, because it can be changed into a prime (150145421) 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, 3753616 + ... + 3753655.

It is an arithmetic number, because the mean of its divisors is an integer number (26275452).

Almost surely, 2150145420 is an apocalyptic number.

150145420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150145420 is an abundant number, since it is smaller than the sum of its proper divisors (165160004).

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

150145420 is a wasteful number, since it uses less digits than its factorization.

150145420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7507280 (or 7507278 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 150145420 is about 12253.3840223834. The cubic root of 150145420 is about 531.5009311449.

Adding to 150145420 its reverse (24541051), we get a palindrome (174686471).

The spelling of 150145420 in words is "one hundred fifty million, one hundred forty-five thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 7507271 15014542 30029084 37536355 75072710 150145420