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20352450252 = 22317835932027
BaseRepresentation
bin10010111101000110…
…011011111011001100
31221112101201121002210
4102331012123323030
5313140211402002
613203315350420
71320231654441
oct227506337314
957471647083
1020352450252
1186a4478122
123b3bbb2410
131bc470b194
14db102d9c8
157e1b8a96c
hex4bd19becc

20352450252 has 96 divisors (see below), whose sum is σ = 50999300352. Its totient is φ = 6294409216.

The previous prime is 20352450211. The next prime is 20352450257. The reversal of 20352450252 is 25205425302.

It is not an unprimeable number, because it can be changed into a prime (20352450257) 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, 10039663 + ... + 10041689.

It is an arithmetic number, because the mean of its divisors is an integer number (531242712).

Almost surely, 220352450252 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 20352450252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25499650176).

20352450252 is an abundant number, since it is smaller than the sum of its proper divisors (30646850100).

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

20352450252 is a wasteful number, since it uses less digits than its factorization.

20352450252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727 (or 2725 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 20352450252 its reverse (25205425302), we get a palindrome (45557875554).

The spelling of 20352450252 in words is "twenty billion, three hundred fifty-two million, four hundred fifty thousand, two hundred fifty-two".

Divisors: 1 2 3 4 6 12 17 34 51 68 83 102 166 204 249 332 498 593 996 1186 1411 1779 2027 2372 2822 3558 4054 4233 5644 6081 7116 8108 8466 10081 12162 16932 20162 24324 30243 34459 40324 49219 60486 68918 98438 103377 120972 137836 147657 168241 196876 206754 295314 336482 413508 504723 590628 672964 836723 1009446 1202011 1673446 2018892 2404022 2510169 2860097 3346892 3606033 4808044 5020338 5720194 7212066 8580291 10040676 11440388 14424132 17160582 20434187 34321164 40868374 61302561 81736748 99766913 122605122 199533826 245210244 299300739 399067652 598601478 1197202956 1696037521 3392075042 5088112563 6784150084 10176225126 20352450252