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151565140 = 2257578257
BaseRepresentation
bin10010000100010…
…11001101010100
3101120012022021201
421002023031110
5302300041030
623012322244
73520165606
oct1102131524
9346168251
10151565140
1178611151
1242913384
132552941c
14161b5176
15d48d2ca
hex908b354

151565140 has 12 divisors (see below), whose sum is σ = 318286836. Its totient is φ = 60626048.

The previous prime is 151565129. The next prime is 151565173. The reversal of 151565140 is 41565151.

It is a happy number.

151565140 is digitally balanced in base 3, because in such base 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 99321156 + 52243984 = 9966^2 + 7228^2 .

It is a junction number, because it is equal to n+sod(n) for n = 151565099 and 151565108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3789109 + ... + 3789148.

It is an arithmetic number, because the mean of its divisors is an integer number (26523903).

Almost surely, 2151565140 is an apocalyptic number.

151565140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151565140 is an abundant number, since it is smaller than the sum of its proper divisors (166721696).

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

151565140 is a wasteful number, since it uses less digits than its factorization.

151565140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7578266 (or 7578264 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 151565140 is about 12311.1794723333. The cubic root of 151565140 is about 533.1709045297.

The spelling of 151565140 in words is "one hundred fifty-one million, five hundred sixty-five thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 7578257 15156514 30313028 37891285 75782570 151565140