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61423305 = 3529337419
BaseRepresentation
bin1110101001001…
…1111011001001
311021120121221020
43222103323021
5111211021210
610032303053
71344042456
oct352237311
9137517836
1061423305
1131743269
12186a1a89
13c957a68
14822c82d
1555d4770
hex3a93ec9

61423305 has 32 divisors (see below), whose sum is σ = 102211200. Its totient is φ = 31460352.

The previous prime is 61423301. The next prime is 61423319. The reversal of 61423305 is 50332416.

It is a happy number.

It is not a de Polignac number, because 61423305 - 22 = 61423301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (61423301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146386 + ... + 146804.

It is an arithmetic number, because the mean of its divisors is an integer number (3194100).

Almost surely, 261423305 is an apocalyptic number.

It is an amenable number.

61423305 is a deficient number, since it is larger than the sum of its proper divisors (40787895).

61423305 is a wasteful number, since it uses less digits than its factorization.

61423305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 61423305 is about 7837.3021506128. The cubic root of 61423305 is about 394.5581878473.

The spelling of 61423305 in words is "sixty-one million, four hundred twenty-three thousand, three hundred five".

Divisors: 1 3 5 15 29 87 145 337 419 435 1011 1257 1685 2095 5055 6285 9773 12151 29319 36453 48865 60755 141203 146595 182265 423609 706015 2118045 4094887 12284661 20474435 61423305