Search a number
-
+
101212302320 = 2451989748169
BaseRepresentation
bin101111001000010111…
…0010010101111110000
3100200020122210200101122
41132100232102233300
53124240322133240
6114255110521412
710212064242413
oct1362056225760
9320218720348
10101212302320
1139a18784848
1217747966268
13970ca206ac
144c82073b7a
1529758a54b5
hex1790b92bf0

101212302320 has 80 divisors (see below), whose sum is σ = 250487316000. Its totient is φ = 37923139584.

The previous prime is 101212302313. The next prime is 101212302337. The reversal of 101212302320 is 23203212101.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238805 + ... + 509364.

It is an arithmetic number, because the mean of its divisors is an integer number (3131091450).

Almost surely, 2101212302320 is an apocalyptic number.

101212302320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212302320 is an abundant number, since it is smaller than the sum of its proper divisors (149275013680).

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

101212302320 is a wasteful number, since it uses less digits than its factorization.

101212302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748290 (or 748284 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 101212302320 its reverse (23203212101), we get a palindrome (124415514421).

The spelling of 101212302320 in words is "one hundred one billion, two hundred twelve million, three hundred two thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 19 20 38 40 76 80 89 95 152 178 190 304 356 380 445 712 760 890 1424 1520 1691 1780 3382 3560 6764 7120 8455 13528 16910 27056 33820 67640 135280 748169 1496338 2992676 3740845 5985352 7481690 11970704 14215211 14963380 28430422 29926760 56860844 59853520 66587041 71076055 113721688 133174082 142152110 227443376 266348164 284304220 332935205 532696328 568608440 665870410 1065392656 1137216880 1265153779 1331740820 2530307558 2663481640 5060615116 5326963280 6325768895 10121230232 12651537790 20242460464 25303075580 50606151160 101212302320