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72141606 = 23238910303
BaseRepresentation
bin1000100110011…
…00101100100110
312000202011200100
410103030230212
5121432012411
611054124530
71534123245
oct423145446
9160664610
1072141606
11377a4069
12201b0746
1311c3b554
14981c95c
156500456
hex44ccb26

72141606 has 24 divisors (see below), whose sum is σ = 156723840. Its totient is φ = 23983056.

The previous prime is 72141583. The next prime is 72141607. The reversal of 72141606 is 60614127.

It is a super-2 number, since 2×721416062 = 10408822632518472, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72141606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72141607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1851 + ... + 12153.

It is an arithmetic number, because the mean of its divisors is an integer number (6530160).

Almost surely, 272141606 is an apocalyptic number.

72141606 is an abundant number, since it is smaller than the sum of its proper divisors (84582234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72141606 is a wasteful number, since it uses less digits than its factorization.

72141606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10700 (or 10697 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 72141606 is about 8493.6214890940. The cubic root of 72141606 is about 416.2893196631.

The spelling of 72141606 in words is "seventy-two million, one hundred forty-one thousand, six hundred six".

Divisors: 1 2 3 6 9 18 389 778 1167 2334 3501 7002 10303 20606 30909 61818 92727 185454 4007867 8015734 12023601 24047202 36070803 72141606