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131022023330 = 251123266319447
BaseRepresentation
bin111101000000110000…
…1010110101010100010
3110112012011001102001202
41322001201112222202
54121313114221310
6140105104401202
712315563552132
oct1720141265242
9415164042052
10131022023330
1150625575410
1221487016202
13c480853073
1464ad10aac2
15361c9453a5
hex1e81856aa2

131022023330 has 64 divisors (see below), whose sum is σ = 268580302848. Its totient is φ = 45553421760.

The previous prime is 131022023323. The next prime is 131022023333. The reversal of 131022023330 is 33320220131.

It is not an unprimeable number, because it can be changed into a prime (131022023333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6727667 + ... + 6747113.

It is an arithmetic number, because the mean of its divisors is an integer number (4196567232).

Almost surely, 2131022023330 is an apocalyptic number.

131022023330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131022023330 is an abundant number, since it is smaller than the sum of its proper divisors (137558279518).

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

131022023330 is a wasteful number, since it uses less digits than its factorization.

131022023330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22151.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 131022023330 its reverse (33320220131), we get a palindrome (164342243461).

The spelling of 131022023330 in words is "one hundred thirty-one billion, twenty-two million, twenty-three thousand, three hundred thirty".

Divisors: 1 2 5 10 11 22 23 46 55 110 115 230 253 506 1265 2530 2663 5326 13315 19447 26630 29293 38894 58586 61249 97235 122498 146465 194470 213917 292930 306245 427834 447281 612490 673739 894562 1069585 1347478 2139170 2236405 3368695 4472810 4920091 6737390 9840182 24600455 49200910 51787361 103574722 258936805 517873610 569660971 1139321942 1191109303 2382218606 2848304855 5696609710 5955546515 11911093030 13102202333 26204404666 65511011665 131022023330