Search a number
-
+
20122430200 = 2352103976817
BaseRepresentation
bin10010101111011000…
…111110101011111000
31220221100220100220121
4102233120332223320
5312202320231300
613124421303024
71311436556155
oct225730765370
956840810817
1020122430200
118596650704
123a96b64a74
131b88b72a42
14d8c67522c
157cb8a181a
hex4af63eaf8

20122430200 has 48 divisors (see below), whose sum is σ = 47238918480. Its totient is φ = 7970818560.

The previous prime is 20122430197. The next prime is 20122430203. The reversal of 20122430200 is 203422102.

It is an interprime number because it is at equal distance from previous prime (20122430197) and next prime (20122430203).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122430203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 467809 + ... + 509008.

It is an arithmetic number, because the mean of its divisors is an integer number (984144135).

Almost surely, 220122430200 is an apocalyptic number.

20122430200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20122430200 is an abundant number, since it is smaller than the sum of its proper divisors (27116488280).

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

20122430200 is a wasteful number, since it uses less digits than its factorization.

20122430200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 976936 (or 976927 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20122430200 its reverse (203422102), we get a palindrome (20325852302).

The spelling of 20122430200 in words is "twenty billion, one hundred twenty-two million, four hundred thirty thousand, two hundred".

Divisors: 1 2 4 5 8 10 20 25 40 50 100 103 200 206 412 515 824 1030 2060 2575 4120 5150 10300 20600 976817 1953634 3907268 4884085 7814536 9768170 19536340 24420425 39072680 48840850 97681700 100612151 195363400 201224302 402448604 503060755 804897208 1006121510 2012243020 2515303775 4024486040 5030607550 10061215100 20122430200