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201100311432 = 23322793059881
BaseRepresentation
bin1011101101001010000…
…0110011101110001000
3201020002000201022000200
42323102200303232020
511243323134431212
6232214553332200
720346311305026
oct2732240635610
9636060638020
10201100311432
1178316979499
1232b84107060
1315c6b27b827
149a3a2a1716
15536ed6c6dc
hex2ed2833b88

201100311432 has 24 divisors (see below), whose sum is σ = 544646676990. Its totient is φ = 67033437120.

The previous prime is 201100311409. The next prime is 201100311449. The reversal of 201100311432 is 234113001102.

201100311432 is a `hidden beast` number, since 201 + 1 + 0 + 0 + 31 + 1 + 432 = 666.

It can be written as a sum of positive squares in only one way, i.e., 192427859556 + 8672451876 = 438666^2 + 93126^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1396529869 + ... + 1396530012.

Almost surely, 2201100311432 is an apocalyptic number.

It is an amenable number.

201100311432 is an abundant number, since it is smaller than the sum of its proper divisors (343546365558).

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

201100311432 is a wasteful number, since it uses less digits than its factorization.

201100311432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2793059893 (or 2793059886 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 201100311432 its reverse (234113001102), we get a palindrome (435213312534).

The spelling of 201100311432 in words is "two hundred one billion, one hundred million, three hundred eleven thousand, four hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 2793059881 5586119762 8379179643 11172239524 16758359286 22344479048 25137538929 33516718572 50275077858 67033437144 100550155716 201100311432