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154035140 = 22572347837
BaseRepresentation
bin10010010111001…
…10001111000100
3101201211210111012
421023212033010
5303413111030
623141301352
73550164020
oct1113461704
9351753435
10154035140
1179a48976
1243704858
1325bb276c
1416659380
15d7ca095
hex92e63c4

154035140 has 48 divisors (see below), whose sum is σ = 385765632. Its totient is φ = 50514816.

The previous prime is 154035131. The next prime is 154035173. The reversal of 154035140 is 41530451.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 15 ways as a sum of consecutive naturals, for example, 20699 + ... + 27138.

It is an arithmetic number, because the mean of its divisors is an integer number (8036784).

Almost surely, 2154035140 is an apocalyptic number.

154035140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154035140 is an abundant number, since it is smaller than the sum of its proper divisors (231730492).

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

154035140 is a wasteful number, since it uses less digits than its factorization.

154035140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47876 (or 47874 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 154035140 is about 12411.0893961811. The cubic root of 154035140 is about 536.0516073054.

Adding to 154035140 its reverse (41530451), we get a palindrome (195565591).

The spelling of 154035140 in words is "one hundred fifty-four million, thirty-five thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 23 28 35 46 70 92 115 140 161 230 322 460 644 805 1610 3220 47837 95674 191348 239185 334859 478370 669718 956740 1100251 1339436 1674295 2200502 3348590 4401004 5501255 6697180 7701757 11002510 15403514 22005020 30807028 38508785 77017570 154035140