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357742541 = 1327518657
BaseRepresentation
bin10101010100101…
…011011111001101
3220221011012111202
4111110223133031
51213040230131
655255355245
711602522112
oct2524533715
9827135452
10357742541
11173a332a2
129b982b25
13591673a0
1435724909
1521617bcb
hex1552b7cd

357742541 has 4 divisors (see below), whose sum is σ = 385261212. Its totient is φ = 330223872.

The previous prime is 357742537. The next prime is 357742571. The reversal of 357742541 is 145247753.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 95140516 + 262602025 = 9754^2 + 16205^2 .

It is a cyclic number.

It is not a de Polignac number, because 357742541 - 22 = 357742537 is a prime.

It is a super-2 number, since 2×3577425412 = 255959451282273362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 357742495 and 357742504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (357742501) 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, 13759316 + ... + 13759341.

It is an arithmetic number, because the mean of its divisors is an integer number (96315303).

Almost surely, 2357742541 is an apocalyptic number.

It is an amenable number.

357742541 is a deficient number, since it is larger than the sum of its proper divisors (27518671).

357742541 is a wasteful number, since it uses less digits than its factorization.

357742541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27518670.

The product of its digits is 117600, while the sum is 38.

The square root of 357742541 is about 18914.0831392907. The cubic root of 357742541 is about 709.8885899381. Note that the first 3 decimals are identical.

The spelling of 357742541 in words is "three hundred fifty-seven million, seven hundred forty-two thousand, five hundred forty-one".

Divisors: 1 13 27518657 357742541