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72086894 = 2113276677
BaseRepresentation
bin1000100101111…
…11010101101110
312000122101121222
410102333111232
5121423240034
611053023342
71533504605
oct422772556
9160571558
1072086894
1137766a50
1220184b52
1311c1c689
149806a3c
1564de12e
hex44bf56e

72086894 has 8 divisors (see below), whose sum is σ = 117960408. Its totient is φ = 32766760.

The previous prime is 72086891. The next prime is 72086909. The reversal of 72086894 is 49868027.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72086891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1638317 + ... + 1638360.

It is an arithmetic number, because the mean of its divisors is an integer number (14745051).

Almost surely, 272086894 is an apocalyptic number.

72086894 is a deficient number, since it is larger than the sum of its proper divisors (45873514).

72086894 is a wasteful number, since it uses less digits than its factorization.

72086894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276690.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 72086894 is about 8490.4001083577. The cubic root of 72086894 is about 416.1840554811.

The spelling of 72086894 in words is "seventy-two million, eighty-six thousand, eight hundred ninety-four".

Divisors: 1 2 11 22 3276677 6553354 36043447 72086894