Search a number
-
+
31322615435230 = 2572392111211213
BaseRepresentation
bin1110001111100110111010…
…10111011100111111011110
311002220102010220222100121111
413013303131113130333132
513101142204022411410
6150341224430052234
76411661416163240
oct707633527347736
9132812126870544
1031322615435230
119a8693491a489
12361a64864a07a
13146292ca29a12
147a404631a090
15394b8e398b8a
hex1c7cdd5dcfde

31322615435230 has 64 divisors (see below), whose sum is σ = 67237668753408. Its totient is φ = 10272101304960.

The previous prime is 31322615435227. The next prime is 31322615435239. The reversal of 31322615435230 is 3253451622313.

It is a super-2 number, since 2×313226154352302 (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31322615435239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 148193104 + ... + 148404316.

It is an arithmetic number, because the mean of its divisors is an integer number (1050588574272).

Almost surely, 231322615435230 is an apocalyptic number.

31322615435230 is an abundant number, since it is smaller than the sum of its proper divisors (35915053318178).

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

31322615435230 is a wasteful number, since it uses less digits than its factorization.

31322615435230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303361.

The product of its (nonzero) digits is 388800, while the sum is 40.

The spelling of 31322615435230 in words is "thirty-one trillion, three hundred twenty-two billion, six hundred fifteen million, four hundred thirty-five thousand, two hundred thirty".

Divisors: 1 2 5 7 10 14 23 35 46 70 115 161 230 322 805 1610 92111 184222 211213 422426 460555 644777 921110 1056065 1289554 1478491 2112130 2118553 2956982 3223885 4237106 4857899 6447770 7392455 9715798 10592765 14784910 14829871 21185530 24289495 29659742 34005293 48578990 68010586 74149355 148298710 170026465 340052930 19455040643 38910081286 97275203215 136185284501 194550406430 272370569002 447465934789 680926422505 894931869578 1361852845010 2237329673945 3132261543523 4474659347890 6264523087046 15661307717615 31322615435230