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4312400020 = 225697130931
BaseRepresentation
bin1000000010000101…
…00000000010010100
3102010112112121201021
410001002200002110
532312433300040
61551525410524
7211602536545
oct40102400224
912115477637
104312400020
111913267a65
12a04269a44
135395715b6
142cca344cc
151a38d324a
hex1010a0094

4312400020 has 24 divisors (see below), whose sum is σ = 9057631968. Its totient is φ = 1724656800.

The previous prime is 4312400017. The next prime is 4312400107. The reversal of 4312400020 is 200042134.

It is a junction number, because it is equal to n+sod(n) for n = 4312399967 and 4312400003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123955 + ... + 154885.

It is an arithmetic number, because the mean of its divisors is an integer number (377401332).

Almost surely, 24312400020 is an apocalyptic number.

It is an amenable number.

4312400020 is an abundant number, since it is smaller than the sum of its proper divisors (4745231948).

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

4312400020 is a wasteful number, since it uses less digits than its factorization.

4312400020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37911 (or 37909 counting only the distinct ones).

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

The square root of 4312400020 is about 65668.8664436961. The cubic root of 4312400020 is about 1627.6949389865.

Adding to 4312400020 its reverse (200042134), we get a palindrome (4512442154).

The spelling of 4312400020 in words is "four billion, three hundred twelve million, four hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 6971 13942 27884 30931 34855 61862 69710 123724 139420 154655 309310 618620 215620001 431240002 862480004 1078100005 2156200010 4312400020