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72486214 = 236243107
BaseRepresentation
bin1000101001000…
…00110101000110
312001101200101121
410110200311012
5122024024324
611105344154
71540060033
oct424406506
9161350347
1072486214
1137a09a69
122033805a
131202c368
1498ac38a
15656c5e4
hex4520d46

72486214 has 4 divisors (see below), whose sum is σ = 108729324. Its totient is φ = 36243106.

The previous prime is 72486163. The next prime is 72486217. The reversal of 72486214 is 41268427.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41268427 = 411006547.

It is a self number, because there is not a number n which added to its sum of digits gives 72486214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72486217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18121552 + ... + 18121555.

It is an arithmetic number, because the mean of its divisors is an integer number (27182331).

Almost surely, 272486214 is an apocalyptic number.

72486214 is a deficient number, since it is larger than the sum of its proper divisors (36243110).

72486214 is a wasteful number, since it uses less digits than its factorization.

72486214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36243109.

The product of its digits is 21504, while the sum is 34.

The square root of 72486214 is about 8513.8836026810. The cubic root of 72486214 is about 416.9511144283.

The spelling of 72486214 in words is "seventy-two million, four hundred eighty-six thousand, two hundred fourteen".

Divisors: 1 2 36243107 72486214