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154086540 = 22359112819
BaseRepresentation
bin10010010111100…
…10110010001100
3101201221101222220
421023302302030
5303421232130
623142335340
73550466616
oct1113626214
9351841886
10154086540
1179a83553
124372a550
1325bccc8a
141666ddb6
15d7da410
hex92f2c8c

154086540 has 48 divisors (see below), whose sum is σ = 432069120. Its totient is φ = 41030080.

The previous prime is 154086511. The next prime is 154086547. The reversal of 154086540 is 45680451.

It is not an unprimeable number, because it can be changed into a prime (154086547) 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 15 ways as a sum of consecutive naturals, for example, 53251 + ... + 56069.

It is an arithmetic number, because the mean of its divisors is an integer number (9001440).

Almost surely, 2154086540 is an apocalyptic number.

154086540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154086540 is an abundant number, since it is smaller than the sum of its proper divisors (277982580).

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

154086540 is a wasteful number, since it uses less digits than its factorization.

154086540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742 (or 3740 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 154086540 is about 12413.1599522442. The cubic root of 154086540 is about 536.1112257112. Note that the first 3 decimals are identical.

The spelling of 154086540 in words is "one hundred fifty-four million, eighty-six thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 911 1822 2733 2819 3644 4555 5466 5638 8457 9110 10932 11276 13665 14095 16914 18220 27330 28190 33828 42285 54660 56380 84570 169140 2568109 5136218 7704327 10272436 12840545 15408654 25681090 30817308 38521635 51362180 77043270 154086540