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23142831864 = 2331039361987
BaseRepresentation
bin10101100011011010…
…111001011011111000
32012201212022200001220
4111203122321123320
5334344031104424
614344235112040
71446333553005
oct254332713370
965655280056
1023142831864
1198a6586129
12459a5a2620
13224a84b469
14119786c8ac
15906b25579
hex5636b96f8

23142831864 has 32 divisors (see below), whose sum is σ = 58418805120. Its totient is φ = 7639380576.

The previous prime is 23142831847. The next prime is 23142831883. The reversal of 23142831864 is 46813824132.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4678522 + ... + 4683465.

It is an arithmetic number, because the mean of its divisors is an integer number (1825587660).

Almost surely, 223142831864 is an apocalyptic number.

23142831864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23142831864 is an abundant number, since it is smaller than the sum of its proper divisors (35275973256).

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

23142831864 is a wasteful number, since it uses less digits than its factorization.

23142831864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9362099 (or 9362095 counting only the distinct ones).

The product of its digits is 221184, while the sum is 42.

The spelling of 23142831864 in words is "twenty-three billion, one hundred forty-two million, eight hundred thirty-one thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 24 103 206 309 412 618 824 1236 2472 9361987 18723974 28085961 37447948 56171922 74895896 112343844 224687688 964284661 1928569322 2892853983 3857138644 5785707966 7714277288 11571415932 23142831864