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312102020010 = 2351137101253081
BaseRepresentation
bin1001000101010101011…
…10101110001110101010
31002211120221000100020110
410202222232232032222
520103141104120020
6355213325235150
731356115253454
oct4425256561652
91084527010213
10312102020010
111103a84aa030
12505a2402ab6
132357b1634b1
141116a5192d4
1581b9d828e0
hex48aabae3aa

312102020010 has 128 divisors (see below), whose sum is σ = 847537198848. Its totient is φ = 72887040000.

The previous prime is 312102019963. The next prime is 312102020011. The reversal of 312102020010 is 10020201213.

It is not an unprimeable number, because it can be changed into a prime (312102020011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1106670 + ... + 1359750.

It is an arithmetic number, because the mean of its divisors is an integer number (6621384366).

Almost surely, 2312102020010 is an apocalyptic number.

312102020010 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 312102020010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423768599424).

312102020010 is an abundant number, since it is smaller than the sum of its proper divisors (535435178838).

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

312102020010 is a wasteful number, since it uses less digits than its factorization.

312102020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253240.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 312102020010 its reverse (10020201213), we get a palindrome (322122221223).

The spelling of 312102020010 in words is "three hundred twelve billion, one hundred two million, twenty thousand, ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 37 55 66 74 101 110 111 165 185 202 222 303 330 370 407 505 555 606 814 1010 1110 1111 1221 1515 2035 2222 2442 3030 3333 3737 4070 5555 6105 6666 7474 11110 11211 12210 16665 18685 22422 33330 37370 41107 56055 82214 112110 123321 205535 246642 253081 411070 506162 616605 759243 1233210 1265405 1518486 2530810 2783891 3796215 5567782 7592430 8351673 9363997 13919455 16703346 18727994 25561181 27838910 28091991 41758365 46819985 51122362 56183982 76683543 83516730 93639970 103003967 127805905 140459955 153367086 206007934 255611810 280919910 281172991 309011901 383417715 515019835 562345982 618023802 766835430 843518973 945763697 1030039670 1405864955 1545059505 1687037946 1891527394 2811729910 2837291091 3090119010 4217594865 4728818485 5674582182 8435189730 9457636970 10403400667 14186455455 20806801334 28372910910 31210202001 52017003335 62420404002 104034006670 156051010005 312102020010