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79443429 = 31316312497
BaseRepresentation
bin1001011110000…
…11010111100101
312112111010220020
410233003113211
5130314142204
611514425353
71653154332
oct457032745
9175433806
1079443429
114093102a
1222732259
13135c6c60
14a79d989
156e93bd9
hex4bc35e5

79443429 has 16 divisors (see below), whose sum is σ = 114781632. Its totient is φ = 48584448.

The previous prime is 79443409. The next prime is 79443437. The reversal of 79443429 is 92434497.

It is not a de Polignac number, because 79443429 - 211 = 79441381 is a prime.

It is a super-2 number, since 2×794434292 = 12622516822556082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79443409) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109 + ... + 12605.

It is an arithmetic number, because the mean of its divisors is an integer number (7173852).

Almost surely, 279443429 is an apocalyptic number.

It is an amenable number.

79443429 is a deficient number, since it is larger than the sum of its proper divisors (35338203).

79443429 is a wasteful number, since it uses less digits than its factorization.

79443429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12676.

The product of its digits is 217728, while the sum is 42.

The square root of 79443429 is about 8913.1043413617. The cubic root of 79443429 is about 429.8853651513.

The spelling of 79443429 in words is "seventy-nine million, four hundred forty-three thousand, four hundred twenty-nine".

Divisors: 1 3 13 39 163 489 2119 6357 12497 37491 162461 487383 2037011 6111033 26481143 79443429