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150842420 = 2257542121
BaseRepresentation
bin10001111110110…
…10110000110100
3101111211120220022
420333122300310
5302103424140
622545024312
73511065551
oct1077326064
9344746808
10150842420
1178168163
1242625098
1325335491
1416067a28
15d3990b5
hex8fdac34

150842420 has 12 divisors (see below), whose sum is σ = 316769124. Its totient is φ = 60336960.

The previous prime is 150842413. The next prime is 150842429. The reversal of 150842420 is 24248051.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 111429136 + 39413284 = 10556^2 + 6278^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 150842420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150842429) 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, 3771041 + ... + 3771080.

It is an arithmetic number, because the mean of its divisors is an integer number (26397427).

Almost surely, 2150842420 is an apocalyptic number.

150842420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

150842420 is an abundant number, since it is smaller than the sum of its proper divisors (165926704).

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

150842420 is a wasteful number, since it uses less digits than its factorization.

150842420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542130 (or 7542128 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 150842420 is about 12281.7922144938. The cubic root of 150842420 is about 532.3221003446.

The spelling of 150842420 in words is "one hundred fifty million, eight hundred forty-two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 7542121 15084242 30168484 37710605 75421210 150842420