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154166540 = 225111741221
BaseRepresentation
bin10010011000001…
…10010100001100
3101202002110201212
421030012110030
5303431312130
623144153552
73551252063
oct1114062414
9352073655
10154166540
117a028670
12437688b8
1325c2a508
14166911da
15d803e95
hex930650c

154166540 has 48 divisors (see below), whose sum is σ = 373965984. Its totient is φ = 52761600.

The previous prime is 154166527. The next prime is 154166543. The reversal of 154166540 is 45661451.

154166540 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 154166497 and 154166506.

It is not an unprimeable number, because it can be changed into a prime (154166543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16871 + ... + 24350.

It is an arithmetic number, because the mean of its divisors is an integer number (7790958).

Almost surely, 2154166540 is an apocalyptic number.

154166540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154166540 is an abundant number, since it is smaller than the sum of its proper divisors (219799444).

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

154166540 is a wasteful number, since it uses less digits than its factorization.

154166540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41258 (or 41256 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 154166540 is about 12416.3819206724. The cubic root of 154166540 is about 536.2039906335.

The spelling of 154166540 in words is "one hundred fifty-four million, one hundred sixty-six thousand, five hundred forty".

Divisors: 1 2 4 5 10 11 17 20 22 34 44 55 68 85 110 170 187 220 340 374 748 935 1870 3740 41221 82442 164884 206105 412210 453431 700757 824420 906862 1401514 1813724 2267155 2803028 3503785 4534310 7007570 7708327 9068620 14015140 15416654 30833308 38541635 77083270 154166540