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202472541 = 342499661
BaseRepresentation
bin11000001000101…
…11110001011101
3112002222200010000
430010113301131
5403313110131
632031404513
75005662645
oct1404276135
9462880100
10202472541
11a4321687
1257983739
1332c4184b
141cc67525
1512b96ce6
hexc117c5d

202472541 has 10 divisors (see below), whose sum is σ = 302459102. Its totient is φ = 134981640.

The previous prime is 202472539. The next prime is 202472549. The reversal of 202472541 is 145274202.

202472541 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 202464441 + 8100 = 14229^2 + 90^2 .

It is not a de Polignac number, because 202472541 - 21 = 202472539 is a prime.

It is a super-3 number, since 3×2024725413 (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202472549) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1249750 + ... + 1249911.

Almost surely, 2202472541 is an apocalyptic number.

It is an amenable number.

202472541 is a deficient number, since it is larger than the sum of its proper divisors (99986561).

202472541 is an equidigital number, since it uses as much as digits as its factorization.

202472541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2499673 (or 2499664 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 202472541 is about 14229.2846271343. The cubic root of 202472541 is about 587.2036021729.

The spelling of 202472541 in words is "two hundred two million, four hundred seventy-two thousand, five hundred forty-one".

Divisors: 1 3 9 27 81 2499661 7498983 22496949 67490847 202472541