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154101140 = 2257705057
BaseRepresentation
bin10010010111101…
…10010110010100
3101201222011000122
421023312112110
5303422214030
623142531112
73550560314
oct1113662624
9351864018
10154101140
1179a93516
1243736a98
1325c0680b
1416675444
15d7de8e5
hex92f6594

154101140 has 12 divisors (see below), whose sum is σ = 323612436. Its totient is φ = 61640448.

The previous prime is 154101137. The next prime is 154101149. The reversal of 154101140 is 41101451.

154101140 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 17023876 + 137077264 = 4126^2 + 11708^2 .

It is a super-2 number, since 2×1541011402 = 47494322698599200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154101149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3852509 + ... + 3852548.

It is an arithmetic number, because the mean of its divisors is an integer number (26967703).

Almost surely, 2154101140 is an apocalyptic number.

154101140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154101140 is an abundant number, since it is smaller than the sum of its proper divisors (169511296).

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

154101140 is a wasteful number, since it uses less digits than its factorization.

154101140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7705066 (or 7705064 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 154101140 is about 12413.7480238645. The cubic root of 154101140 is about 536.1281577043.

Adding to 154101140 its reverse (41101451), we get a palindrome (195202591).

The spelling of 154101140 in words is "one hundred fifty-four million, one hundred one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 7705057 15410114 30820228 38525285 77050570 154101140