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151547140 = 22553142969
BaseRepresentation
bin10010000100001…
…10110100000100
3101120011101121001
421002012310010
5302244002030
623012103044
73520062253
oct1102066404
9346141531
10151547140
11785a9678
1242904a84
1325521184
14161ac79a
15d487cca
hex9086d04

151547140 has 24 divisors (see below), whose sum is σ = 324255960. Its totient is φ = 59474688.

The previous prime is 151547107. The next prime is 151547147. The reversal of 151547140 is 41745151.

It can be written as a sum of positive squares in 4 ways, for example, as 2316484 + 149230656 = 1522^2 + 12216^2 .

It is a junction number, because it is equal to n+sod(n) for n = 151547099 and 151547108.

It is not an unprimeable number, because it can be changed into a prime (151547147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70425 + ... + 72544.

It is an arithmetic number, because the mean of its divisors is an integer number (13510665).

Almost surely, 2151547140 is an apocalyptic number.

151547140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

151547140 is an abundant number, since it is smaller than the sum of its proper divisors (172708820).

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

151547140 is a wasteful number, since it uses less digits than its factorization.

151547140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143031 (or 143029 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 151547140 is about 12310.4484077551. The cubic root of 151547140 is about 533.1497970899.

The spelling of 151547140 in words is "one hundred fifty-one million, five hundred forty-seven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 142969 285938 571876 714845 1429690 2859380 7577357 15154714 30309428 37886785 75773570 151547140