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30535032144 = 2431223951977
BaseRepresentation
bin11100011100000001…
…111001110101010000
32220211001001100111110
4130130001321311100
51000013432012034
622005543413320
72130454330221
oct343401716520
986731040443
1030535032144
1111a4a258661
125b02154240
132b58194776
14169951d248
15bdaab1de9
hex71c079d50

30535032144 has 40 divisors (see below), whose sum is σ = 78890129280. Its totient is φ = 10177316608.

The previous prime is 30535032133. The next prime is 30535032149. The reversal of 30535032144 is 44123053503.

It is a super-2 number, since 2×305350321442 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30535032149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 561484 + ... + 613460.

It is an arithmetic number, because the mean of its divisors is an integer number (1972253232).

Almost surely, 230535032144 is an apocalyptic number.

It is an amenable number.

30535032144 is an abundant number, since it is smaller than the sum of its proper divisors (48355097136).

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

30535032144 is a wasteful number, since it uses less digits than its factorization.

30535032144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64227 (or 64221 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 30535032144 its reverse (44123053503), we get a palindrome (74658085647).

The spelling of 30535032144 in words is "thirty billion, five hundred thirty-five million, thirty-two thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 12239 24478 36717 48956 51977 73434 97912 103954 146868 155931 195824 207908 293736 311862 415816 587472 623724 831632 1247448 2494896 636146503 1272293006 1908439509 2544586012 3816879018 5089172024 7633758036 10178344048 15267516072 30535032144