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61353230 = 257186413
BaseRepresentation
bin1110101000001…
…0110100001110
311021110001210212
43222002310032
5111201300410
610031002422
71343331251
oct352026416
9137401725
1061353230
11316a5654
1218669412
13c931bb3
148211098
1555bdb05
hex3a82d0e

61353230 has 16 divisors (see below), whose sum is σ = 111992544. Its totient is φ = 24195360.

The previous prime is 61353203. The next prime is 61353233. The reversal of 61353230 is 3235316.

It is a junction number, because it is equal to n+sod(n) for n = 61353196 and 61353205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61353233) 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, 42497 + ... + 43916.

It is an arithmetic number, because the mean of its divisors is an integer number (6999534).

Almost surely, 261353230 is an apocalyptic number.

61353230 is a deficient number, since it is larger than the sum of its proper divisors (50639314).

61353230 is a wasteful number, since it uses less digits than its factorization.

61353230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86491.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 61353230 is about 7832.8302675342. The cubic root of 61353230 is about 394.4080863723.

Adding to 61353230 its reverse (3235316), we get a palindrome (64588546).

The spelling of 61353230 in words is "sixty-one million, three hundred fifty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 71 142 355 710 86413 172826 432065 864130 6135323 12270646 30676615 61353230