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61493193 = 3254712491
BaseRepresentation
bin1110101010010…
…0111111001001
311021201011210200
43222210333021
5111220240233
610034002413
71344453306
oct352447711
9137634720
1061493193
1131790823
1218716409
13c980808
14824a0ad
1555ea313
hex3aa4fc9

61493193 has 12 divisors (see below), whose sum is σ = 88993008. Its totient is φ = 40917240.

The previous prime is 61493111. The next prime is 61493227. The reversal of 61493193 is 39139416.

61493193 is a `hidden beast` number, since 614 + 9 + 31 + 9 + 3 = 666.

It is not a de Polignac number, because 61493193 - 214 = 61476809 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 not an unprimeable number, because it can be changed into a prime (61493093) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1323 + ... + 11168.

It is an arithmetic number, because the mean of its divisors is an integer number (7416084).

Almost surely, 261493193 is an apocalyptic number.

It is an amenable number.

61493193 is a deficient number, since it is larger than the sum of its proper divisors (27499815).

61493193 is a wasteful number, since it uses less digits than its factorization.

61493193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13044 (or 13041 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 61493193 is about 7841.7595602008. The cubic root of 61493193 is about 394.7077751032.

The spelling of 61493193 in words is "sixty-one million, four hundred ninety-three thousand, one hundred ninety-three".

Divisors: 1 3 9 547 1641 4923 12491 37473 112419 6832577 20497731 61493193