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103201366640 = 24510687120709
BaseRepresentation
bin110000000011101000…
…1111110001001110000
3100212101021120121200112
41200013101332021300
53142324022213030
6115224323240452
710312266066641
oct1400721761160
9325337517615
10103201366640
113a849532259
1218001b19128
139968b39328
144dd02c36c8
152a40307a95
hex180747e270

103201366640 has 40 divisors (see below), whose sum is σ = 239967617280. Its totient is φ = 41276342016.

The previous prime is 103201366603. The next prime is 103201366649. The reversal of 103201366640 is 46663102301.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 103201366597 and 103201366606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103201366649) 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, 794606 + ... + 915314.

It is an arithmetic number, because the mean of its divisors is an integer number (5999190432).

Almost surely, 2103201366640 is an apocalyptic number.

103201366640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103201366640 is an abundant number, since it is smaller than the sum of its proper divisors (136766250640).

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

103201366640 is a wasteful number, since it uses less digits than its factorization.

103201366640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131409 (or 131403 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 103201366640 its reverse (46663102301), we get a palindrome (149864468941).

The spelling of 103201366640 in words is "one hundred three billion, two hundred one million, three hundred sixty-six thousand, six hundred forty".

Divisors: 1 2 4 5 8 10 16 20 40 80 10687 21374 42748 53435 85496 106870 120709 170992 213740 241418 427480 482836 603545 854960 965672 1207090 1931344 2414180 4828360 9656720 1290017083 2580034166 5160068332 6450085415 10320136664 12900170830 20640273328 25800341660 51600683320 103201366640