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154129028 = 22431934643
BaseRepresentation
bin10010010111111…
…01001010000100
3101202000120021112
421023331022010
5303424112103
623143304152
73551034524
oct1113751204
9352016245
10154129028
117a002469
124374b058
1325c16411
1416681684
15d7e7cd8
hex92fd284

154129028 has 24 divisors (see below), whose sum is σ = 277488288. Its totient is φ = 74866176.

The previous prime is 154129009. The next prime is 154129039. The reversal of 154129028 is 820921451.

It is a super-3 number, since 3×1541290283 (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154128985 and 154129003.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30875 + ... + 35517.

It is an arithmetic number, because the mean of its divisors is an integer number (11562012).

Almost surely, 2154129028 is an apocalyptic number.

It is an amenable number.

154129028 is a deficient number, since it is larger than the sum of its proper divisors (123359260).

154129028 is a wasteful number, since it uses less digits than its factorization.

154129028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4883 (or 4881 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 154129028 is about 12414.8712437947. The cubic root of 154129028 is about 536.1604971584.

The spelling of 154129028 in words is "one hundred fifty-four million, one hundred twenty-nine thousand, twenty-eight".

Divisors: 1 2 4 43 86 172 193 386 772 4643 8299 9286 16598 18572 33196 199649 399298 798596 896099 1792198 3584396 38532257 77064514 154129028