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20301415212 = 22313831918209
BaseRepresentation
bin10010111010000011…
…110000001100101100
31221101211200202012010
4102322003300030230
5313034130241322
613154253441220
71316042116311
oct227203601454
957354622163
1020301415212
11867868a801
123b26aa0210
131bb6c7c930
14da8346d08
157dc45920c
hex4ba0f032c

20301415212 has 96 divisors (see below), whose sum is σ = 51905064960. Its totient is φ = 6138270720.

The previous prime is 20301415207. The next prime is 20301415217. The reversal of 20301415212 is 21251410302.

It is an interprime number because it is at equal distance from previous prime (20301415207) and next prime (20301415217).

It is a super-2 number, since 2×203014152122 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20301415217) 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, 2468964 + ... + 2477172.

It is an arithmetic number, because the mean of its divisors is an integer number (540677760).

Almost surely, 220301415212 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 20301415212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25952532480).

20301415212 is an abundant number, since it is smaller than the sum of its proper divisors (31603649748).

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

20301415212 is a wasteful number, since it uses less digits than its factorization.

20301415212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8503 (or 8501 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 20301415212 its reverse (21251410302), we get a palindrome (41552825514).

The spelling of 20301415212 in words is "twenty billion, three hundred one million, four hundred fifteen thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 83 156 166 191 249 332 382 498 573 764 996 1079 1146 2158 2292 2483 3237 4316 4966 6474 7449 8209 9932 12948 14898 15853 16418 24627 29796 31706 32836 47559 49254 63412 95118 98508 106717 190236 206089 213434 320151 412178 426868 618267 640302 681347 824356 1236534 1280604 1362694 1567919 2044041 2473068 2725388 3135838 4088082 4703757 6271676 8176164 8857511 9407514 17715022 18815028 20382947 26572533 35430044 40765894 53145066 61148841 81531788 106290132 122297682 130137277 244595364 260274554 390411831 520549108 780823662 1561647324 1691784601 3383569202 5075353803 6767138404 10150707606 20301415212