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61423454 = 247213903
BaseRepresentation
bin1110101001001…
…1111101011110
311021120122010202
43222103331132
5111211022304
610032303502
71344043061
oct352237536
9137518122
1061423454
1131743394
12186a1b92
13c957b51
14822c8d8
1555d481e
hex3a93f5e

61423454 has 12 divisors (see below), whose sum is σ = 94143984. Its totient is φ = 30056124.

The previous prime is 61423357. The next prime is 61423459. The reversal of 61423454 is 45432416.

It is a hoax number, since the sum of its digits (29) 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 (61423459) 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 5 ways as a sum of consecutive naturals, for example, 2534 + ... + 11369.

It is an arithmetic number, because the mean of its divisors is an integer number (7845332).

Almost surely, 261423454 is an apocalyptic number.

61423454 is a deficient number, since it is larger than the sum of its proper divisors (32720530).

61423454 is a wasteful number, since it uses less digits than its factorization.

61423454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13999 (or 13952 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 61423454 is about 7837.3116564291. The cubic root of 61423454 is about 394.5585068854.

The spelling of 61423454 in words is "sixty-one million, four hundred twenty-three thousand, four hundred fifty-four".

Divisors: 1 2 47 94 2209 4418 13903 27806 653441 1306882 30711727 61423454