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61068357 = 3372311489
BaseRepresentation
bin1110100011110…
…1010001000101
311020220121001000
43220331101011
5111113141412
610020523513
71341033600
oct350752105
9136817030
1061068357
1131520619
1218550599
13c86232c
148179337
1555644dc
hex3a3d445

61068357 has 48 divisors (see below), whose sum is σ = 108710400. Its totient is φ = 33747840.

The previous prime is 61068353. The next prime is 61068367. The reversal of 61068357 is 75386016.

61068357 is a `hidden beast` number, since 610 + 6 + 8 + 35 + 7 = 666.

61068357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 61068357 - 22 = 61068353 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61068353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40269 + ... + 41757.

It is an arithmetic number, because the mean of its divisors is an integer number (2264800).

Almost surely, 261068357 is an apocalyptic number.

It is an amenable number.

61068357 is a deficient number, since it is larger than the sum of its proper divisors (47642043).

61068357 is a wasteful number, since it uses less digits than its factorization.

61068357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543 (or 1530 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 61068357 is about 7814.6245591199. The cubic root of 61068357 is about 393.7967055708.

It can be divided in two parts, 61068 and 357, that added together give a triangular number (61425 = T350).

The spelling of 61068357 in words is "sixty-one million, sixty-eight thousand, three hundred fifty-seven".

Divisors: 1 3 7 9 21 27 31 49 63 93 147 189 217 279 441 651 837 1323 1489 1519 1953 4467 4557 5859 10423 13401 13671 31269 40203 41013 46159 72961 93807 138477 218883 281421 323113 415431 656649 969339 1246293 1969947 2261791 2908017 6785373 8724051 20356119 61068357