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240538130 = 25743157509
BaseRepresentation
bin11100101011001…
…01001000010010
3121202121121021122
432111211020102
5443034210010
635511322242
75650353230
oct1625451022
9552547248
10240538130
11113860948
1268680382
133aaaba71
1423d35950
15161b5855
hexe565212

240538130 has 64 divisors (see below), whose sum is σ = 510554880. Its totient is φ = 79881984.

The previous prime is 240538099. The next prime is 240538159. The reversal of 240538130 is 31835042.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 240538130.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 472316 + ... + 472824.

It is an arithmetic number, because the mean of its divisors is an integer number (7977420).

Almost surely, 2240538130 is an apocalyptic number.

240538130 is an abundant number, since it is smaller than the sum of its proper divisors (270016750).

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

240538130 is a wasteful number, since it uses less digits than its factorization.

240538130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 240538130 is about 15509.2917310882. The cubic root of 240538130 is about 621.9106253170.

The spelling of 240538130 in words is "two hundred forty million, five hundred thirty-eight thousand, one hundred thirty".

Divisors: 1 2 5 7 10 14 35 43 70 86 157 215 301 314 430 509 602 785 1018 1099 1505 1570 2198 2545 3010 3563 5090 5495 6751 7126 10990 13502 17815 21887 33755 35630 43774 47257 67510 79913 94514 109435 153209 159826 218870 236285 306418 399565 472570 559391 766045 799130 1118782 1532090 2796955 3436259 5593910 6872518 17181295 24053813 34362590 48107626 120269065 240538130