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240738680 = 23571366137
BaseRepresentation
bin11100101100101…
…10000101111000
3121202222210101102
432112112011320
5443112114210
635515510532
75652150020
oct1626260570
9552883342
10240738680
11113988596
1268758448
133ab4c130
1423d88a80
1516204ea5
hexe596178

240738680 has 64 divisors (see below), whose sum is σ = 666671040. Its totient is φ = 76188672.

The previous prime is 240738671. The next prime is 240738689. The reversal of 240738680 is 86837042.

240738680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (240738671) and next prime (240738689).

It is a super-2 number, since 2×2407386802 = 115910224096284800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240738689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29429 + ... + 36708.

It is an arithmetic number, because the mean of its divisors is an integer number (10416735).

Almost surely, 2240738680 is an apocalyptic number.

240738680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

240738680 is an abundant number, since it is smaller than the sum of its proper divisors (425932360).

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

240738680 is a wasteful number, since it uses less digits than its factorization.

240738680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66168 (or 66164 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 240738680 is about 15515.7558629929. The cubic root of 240738680 is about 622.0834177814.

The spelling of 240738680 in words is "two hundred forty million, seven hundred thirty-eight thousand, six hundred eighty".

Divisors: 1 2 4 5 7 8 10 13 14 20 26 28 35 40 52 56 65 70 91 104 130 140 182 260 280 364 455 520 728 910 1820 3640 66137 132274 264548 330685 462959 529096 661370 859781 925918 1322740 1719562 1851836 2314795 2645480 3439124 3703672 4298905 4629590 6018467 6878248 8597810 9259180 12036934 17195620 18518360 24073868 30092335 34391240 48147736 60184670 120369340 240738680