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154226380 = 2257111743137
BaseRepresentation
bin10010011000101…
…00111011001100
3101202012111211011
421030110323030
5303440221010
623145335004
73551621410
oct1114247314
9352174734
10154226380
117a069620
1243797464
1325c4b819
14166a8d40
15d816a8a
hex9314ecc

154226380 has 192 divisors, whose sum is σ = 440681472. Its totient is φ = 43868160.

The previous prime is 154226351. The next prime is 154226381. The reversal of 154226380 is 83622451.

It is not an unprimeable number, because it can be changed into a prime (154226381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1125672 + ... + 1125808.

It is an arithmetic number, because the mean of its divisors is an integer number (2295216).

Almost surely, 2154226380 is an apocalyptic number.

154226380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154226380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220340736).

154226380 is an abundant number, since it is smaller than the sum of its proper divisors (286455092).

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

154226380 is a wasteful number, since it uses less digits than its factorization.

154226380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 154226380 is about 12418.7914065742. The cubic root of 154226380 is about 536.2733578175.

The spelling of 154226380 in words is "one hundred fifty-four million, two hundred twenty-six thousand, three hundred eighty".