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42993205 = 514957709
BaseRepresentation
bin1010010000000…
…0011000110101
32222220021120221
42210000120311
542001240310
64133254341
71031302423
oct244003065
988807527
1042993205
11222a5482
12124943b1
138ba4088
1459d2113
153b93ada
hex2900635

42993205 has 8 divisors (see below), whose sum is σ = 51939000. Its totient is φ = 34163136.

The previous prime is 42993193. The next prime is 42993239. The reversal of 42993205 is 50239924.

It can be written as a sum of positive squares in 4 ways, for example, as 1119364 + 41873841 = 1058^2 + 6471^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42993205 - 219 = 42468917 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28110 + ... + 29599.

It is an arithmetic number, because the mean of its divisors is an integer number (6492375).

Almost surely, 242993205 is an apocalyptic number.

It is an amenable number.

42993205 is a deficient number, since it is larger than the sum of its proper divisors (8945795).

42993205 is a wasteful number, since it uses less digits than its factorization.

42993205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57863.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 42993205 is about 6556.9203899392. The cubic root of 42993205 is about 350.3213511209.

The spelling of 42993205 in words is "forty-two million, nine hundred ninety-three thousand, two hundred five".

Divisors: 1 5 149 745 57709 288545 8598641 42993205