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20202067512 = 233211183113931
BaseRepresentation
bin10010110100001000…
…110001011000111000
31221010220202100202200
4102310020301120320
5312333212130022
613140344230200
71313424512004
oct226410613070
957126670680
1020202067512
1186275a4370
123ab976b360
131b9c507003
14d99085704
157d3882bac
hex4b4231638

20202067512 has 96 divisors (see below), whose sum is σ = 59724812160. Its totient is φ = 6118056000.

The previous prime is 20202067511. The next prime is 20202067537. The reversal of 20202067512 is 21576020202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202067511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1443187 + ... + 1457117.

It is an arithmetic number, because the mean of its divisors is an integer number (622133460).

Almost surely, 220202067512 is an apocalyptic number.

20202067512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20202067512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29862406080).

20202067512 is an abundant number, since it is smaller than the sum of its proper divisors (39522744648).

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

20202067512 is a wasteful number, since it uses less digits than its factorization.

20202067512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15785 (or 15778 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

Adding to 20202067512 its reverse (21576020202), we get a palindrome (41778087714).

The spelling of 20202067512 in words is "twenty billion, two hundred two million, sixty-seven thousand, five hundred twelve".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 132 198 264 396 792 1831 3662 5493 7324 10986 13931 14648 16479 20141 21972 27862 32958 40282 41793 43944 55724 60423 65916 80564 83586 111448 120846 125379 131832 153241 161128 167172 181269 241692 250758 306482 334344 362538 459723 483384 501516 612964 725076 919446 1003032 1225928 1379169 1450152 1838892 2758338 3677784 5516676 11033352 25507661 51015322 76522983 102030644 153045966 204061288 229568949 280584271 306091932 459137898 561168542 612183864 841752813 918275796 1122337084 1683505626 1836551592 2244674168 2525258439 3367011252 5050516878 6734022504 10101033756 20202067512