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42720314 = 2713234727
BaseRepresentation
bin1010001011110…
…1110000111010
32222101102020212
42202331300322
541414022224
64123351122
71026055010
oct242756072
988342225
1042720314
112212944a
12123824a2
138b09ac0
1459608b0
153b3cd0e
hex28bdc3a

42720314 has 16 divisors (see below), whose sum is σ = 78868608. Its totient is φ = 16900272.

The previous prime is 42720283. The next prime is 42720323. The reversal of 42720314 is 41302724.

It is a self number, because there is not a number n which added to its sum of digits gives 42720314.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117182 + ... + 117545.

It is an arithmetic number, because the mean of its divisors is an integer number (4929288).

Almost surely, 242720314 is an apocalyptic number.

42720314 is a deficient number, since it is larger than the sum of its proper divisors (36148294).

42720314 is a wasteful number, since it uses less digits than its factorization.

42720314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234749.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 42720314 is about 6536.0778759130. The cubic root of 42720314 is about 349.5785785006.

It can be divided in two parts, 42720 and 314, that added together give a palindrome (43034).

The spelling of 42720314 in words is "forty-two million, seven hundred twenty thousand, three hundred fourteen".

Divisors: 1 2 7 13 14 26 91 182 234727 469454 1643089 3051451 3286178 6102902 21360157 42720314