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242541397 = 7172038163
BaseRepresentation
bin11100111010011…
…10001101010101
3121220101101020201
432131032031111
5444042311042
640022300501
76003365530
oct1635161525
9556341221
10242541397
111149a9a3a
1269287731
133b330827
14242d7a17
151645e1b7
hexe74e355

242541397 has 8 divisors (see below), whose sum is σ = 293495616. Its totient is φ = 195663552.

The previous prime is 242541367. The next prime is 242541433. The reversal of 242541397 is 793145242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242541397 - 227 = 108323669 is a prime.

It is a super-3 number, since 3×2425413973 (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242541317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1018963 + ... + 1019200.

It is an arithmetic number, because the mean of its divisors is an integer number (36686952).

Almost surely, 2242541397 is an apocalyptic number.

It is an amenable number.

242541397 is a deficient number, since it is larger than the sum of its proper divisors (50954219).

242541397 is a wasteful number, since it uses less digits than its factorization.

242541397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038187.

The product of its digits is 60480, while the sum is 37.

The square root of 242541397 is about 15573.7406232414. The cubic root of 242541397 is about 623.6323348101.

It can be divided in two parts, 24254 and 1397, that added together give a triangular number (25651 = T226).

The spelling of 242541397 in words is "two hundred forty-two million, five hundred forty-one thousand, three hundred ninety-seven".

Divisors: 1 7 17 119 2038163 14267141 34648771 242541397