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242201541 = 380733847
BaseRepresentation
bin11100110111110…
…11001111000101
3121212202010001110
432123323033011
5444000422131
640011115233
76000451641
oct1633731705
9555663043
10242201541
1111479766a
1269142b19
133b241c2a
1424249c21
15163e3646
hexe6fb3c5

242201541 has 4 divisors (see below), whose sum is σ = 322935392. Its totient is φ = 161467692.

The previous prime is 242201539. The next prime is 242201551. The reversal of 242201541 is 145102242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 242201541 - 21 = 242201539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242201501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40366921 + ... + 40366926.

It is an arithmetic number, because the mean of its divisors is an integer number (80733848).

Almost surely, 2242201541 is an apocalyptic number.

It is an amenable number.

242201541 is a deficient number, since it is larger than the sum of its proper divisors (80733851).

242201541 is an equidigital number, since it uses as much as digits as its factorization.

242201541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80733850.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 242201541 is about 15562.8256110515. The cubic root of 242201541 is about 623.3409147816.

Adding to 242201541 its reverse (145102242), we get a palindrome (387303783).

The spelling of 242201541 in words is "two hundred forty-two million, two hundred one thousand, five hundred forty-one".

Divisors: 1 3 80733847 242201541