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154305056 = 2517299781
BaseRepresentation
bin10010011001010…
…00001000100000
3101202100111202002
421030220020200
5304000230211
623151143132
73552366653
oct1114501040
9352314662
10154305056
117a112744
1243814aa8
1325c78589
14166c989a
15d83003b
hex9328220

154305056 has 48 divisors (see below), whose sum is σ = 332783640. Its totient is φ = 70103040.

The previous prime is 154305049. The next prime is 154305071. The reversal of 154305056 is 650503451.

It can be written as a sum of positive squares in 4 ways, for example, as 143520400 + 10784656 = 11980^2 + 3284^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10886 + ... + 20666.

Almost surely, 2154305056 is an apocalyptic number.

154305056 is a gapful number since it is divisible by the number (16) 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 154305056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166391820).

154305056 is an abundant number, since it is smaller than the sum of its proper divisors (178478584).

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

154305056 is a wasteful number, since it uses less digits than its factorization.

154305056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9837 (or 9829 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 154305056 is about 12421.9586217311. The cubic root of 154305056 is about 536.3645326006.

The spelling of 154305056 in words is "one hundred fifty-four million, three hundred five thousand, fifty-six".

Divisors: 1 2 4 8 16 17 29 32 34 58 68 116 136 232 272 464 493 544 928 986 1972 3944 7888 9781 15776 19562 39124 78248 156496 166277 283649 312992 332554 567298 665108 1134596 1330216 2269192 2660432 4538384 4822033 5320864 9076768 9644066 19288132 38576264 77152528 154305056