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20231102023212 = 22323793119297487
BaseRepresentation
bin1001001100110011010111…
…01001100100011000101100
32122122002000021200200011210
410212121223221210120230
510122431244104220322
6111010012344314420
74155435365555253
oct446315351443054
978562007620153
1020231102023212
11649aa64739653
122328b0b172a10
13b39a280a6832
144dd294c9179a
152513cda6970c
hex12666ba6462c

20231102023212 has 96 divisors (see below), whose sum is σ = 49898019225600. Its totient is φ = 6366781092672.

The previous prime is 20231102023177. The next prime is 20231102023219. The reversal of 20231102023212 is 21232020113202.

It is a super-2 number, since 2×202311020232122 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20231102023219) 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, 67857933 + ... + 68155419.

It is an arithmetic number, because the mean of its divisors is an integer number (519771033600).

Almost surely, 220231102023212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20231102023212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24949009612800).

20231102023212 is an abundant number, since it is smaller than the sum of its proper divisors (29666917202388).

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

20231102023212 is a wasteful number, since it uses less digits than its factorization.

20231102023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300715 (or 300713 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20231102023212 its reverse (21232020113202), we get a palindrome (41463122136414).

The spelling of 20231102023212 in words is "twenty trillion, two hundred thirty-one billion, one hundred two million, twenty-three thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 23 46 69 79 92 138 158 237 276 316 474 948 1817 3119 3634 5451 6238 7268 9357 10902 12476 18714 21804 37428 71737 143474 215211 246401 286948 297487 430422 492802 594974 739203 860844 892461 985604 1189948 1478406 1784922 2956812 3569844 5667223 6842201 11334446 13684402 17001669 20526603 22668892 23501473 27368804 34003338 41053206 47002946 68006676 70504419 82106412 94005892 141008838 282017676 540533879 927861953 1081067758 1621601637 1855723906 2162135516 2783585859 3243203274 3711447812 5567171718 6486406548 11134343436 21340824919 42681649838 64022474757 73301094287 85363299676 128044949514 146602188574 219903282861 256089899028 293204377148 439806565722 879613131444 1685925168601 3371850337202 5057775505803 6743700674404 10115551011606 20231102023212