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201033012021 = 3732657345487
BaseRepresentation
bin1011101100111010000…
…0000101001100110101
3201012220100002010120220
42323032200011030311
511243203422341041
6232204151044553
720344533256602
oct2731640051465
9635810063526
10201033012021
1178291992446
1232b65670759
1315c5a3472aa
149a313836a9
155368ec6d66
hex2ece805335

201033012021 has 16 divisors (see below), whose sum is σ = 271818902784. Its totient is φ = 132135957504.

The previous prime is 201033011957. The next prime is 201033012023. The reversal of 201033012021 is 120210330102.

It is not a de Polignac number, because 201033012021 - 26 = 201033011957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201033012023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409140 + ... + 754626.

It is an arithmetic number, because the mean of its divisors is an integer number (16988681424).

Almost surely, 2201033012021 is an apocalyptic number.

It is an amenable number.

201033012021 is a deficient number, since it is larger than the sum of its proper divisors (70785890763).

201033012021 is a wasteful number, since it uses less digits than its factorization.

201033012021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348220.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 201033012021 its reverse (120210330102), we get a palindrome (321243342123).

The spelling of 201033012021 in words is "two hundred one billion, thirty-three million, twelve thousand, twenty-one".

Divisors: 1 3 73 219 2657 7971 193961 345487 581883 1036461 25220551 75661653 917958959 2753876877 67011004007 201033012021