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20252432312 = 237389929693
BaseRepresentation
bin10010110111001000…
…111001011110111000
31221021102112011021122
4102313020321132320
5312434110313222
613145343524412
71314605556110
oct226710713670
957242464248
1020252432312
118652a74172
123b125b9708
131ba9a8c478
14da1a36040
157d7ed0a42
hex4b72397b8

20252432312 has 32 divisors (see below), whose sum is σ = 43509679200. Its totient is φ = 8657291904.

The previous prime is 20252432311. The next prime is 20252432327. The reversal of 20252432312 is 21323425202.

It is a super-2 number, since 2×202524323122 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20252432311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443063 + ... + 486630.

It is an arithmetic number, because the mean of its divisors is an integer number (1359677475).

Almost surely, 220252432312 is an apocalyptic number.

It is an amenable number.

20252432312 is an abundant number, since it is smaller than the sum of its proper divisors (23257246888).

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

20252432312 is a wasteful number, since it uses less digits than its factorization.

20252432312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930095 (or 930091 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20252432312 its reverse (21323425202), we get a palindrome (41575857514).

The spelling of 20252432312 in words is "twenty billion, two hundred fifty-two million, four hundred thirty-two thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 389 778 1556 2723 3112 5446 10892 21784 929693 1859386 3718772 6507851 7437544 13015702 26031404 52062808 361650577 723301154 1446602308 2531554039 2893204616 5063108078 10126216156 20252432312