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201154972 = 22269186947
BaseRepresentation
bin10111111110101…
…10000110011100
3112000111201202011
423333112012130
5402443424342
631543241004
74661534434
oct1377260634
9460451664
10201154972
11a3601787
1257449164
133289cc15
141ca032c4
15129d6717
hexbfd619c

201154972 has 12 divisors (see below), whose sum is σ = 353331720. Its totient is φ = 100203056.

The previous prime is 201154909. The next prime is 201154973. The reversal of 201154972 is 279451102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201154973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92398 + ... + 94549.

It is an arithmetic number, because the mean of its divisors is an integer number (29444310).

Almost surely, 2201154972 is an apocalyptic number.

It is an amenable number.

201154972 is a deficient number, since it is larger than the sum of its proper divisors (152176748).

201154972 is a wasteful number, since it uses less digits than its factorization.

201154972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187220 (or 187218 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 201154972 is about 14182.9112667322. The cubic root of 201154972 is about 585.9271071489.

The spelling of 201154972 in words is "two hundred one million, one hundred fifty-four thousand, nine hundred seventy-two".

Divisors: 1 2 4 269 538 1076 186947 373894 747788 50288743 100577486 201154972