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154063540 = 22515494973
BaseRepresentation
bin10010010111011…
…01001010110100
3101201220020110001
421023231022310
5303420013130
623142041044
73550342561
oct1113551264
9351806401
10154063540
1179a68244
1243719184
1325bc2677
1416665868
15d7d36ca
hex92ed2b4

154063540 has 24 divisors (see below), whose sum is σ = 323807400. Its totient is φ = 61573248.

The previous prime is 154063519. The next prime is 154063541. The reversal of 154063540 is 45360451.

154063540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14776336 + 139287204 = 3844^2 + 11802^2 .

It is a junction number, because it is equal to n+sod(n) for n = 154063499 and 154063508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154063541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28494 + ... + 33466.

It is an arithmetic number, because the mean of its divisors is an integer number (13491975).

Almost surely, 2154063540 is an apocalyptic number.

154063540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154063540 is an abundant number, since it is smaller than the sum of its proper divisors (169743860).

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

154063540 is a wasteful number, since it uses less digits than its factorization.

154063540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6531 (or 6529 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 154063540 is about 12412.2334815294. The cubic root of 154063540 is about 536.0845498537.

The spelling of 154063540 in words is "one hundred fifty-four million, sixty-three thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 1549 3098 4973 6196 7745 9946 15490 19892 24865 30980 49730 99460 7703177 15406354 30812708 38515885 77031770 154063540